engine mil inoperative or indicates a malfunction mercedesdr donald blakeslee

engine mil inoperative or indicates a malfunction mercedes


Copyright 2023 Mechanic Base. If due to the vehicle design, or where oil temperature measurement is impractical, the engines normal operating temperature may be checked by other means, such as the operation of the engine cooling fan. Remove temperature measuring probe and replace dipstick. That's weird, because the natural idle is ok but the fast idle is way way out. Of course, that depends on which code is stored in the vehicles computer. The Malfunction Indicator Light or MIL is the technical name for the Check Engine Light. The check engine light is blinking while driving: Not to be confused with the light occasionally flickering in the first situation, if your check engine light is blinking consistently that typically indicates there is a major issue with your vehicle and you should pull over when safe. Yes, according to 8.2. The only way to find out whats wrong with the car is to plug in a OBD2 scantool. The Mode 06 menu is usually found by choosing "generic" or "global" OBD II on the scan tool main menu rather than entering the vehicle year, make and model. This, in turn, may require the use of a scan tool and a special relearning procedure to reset the PCM. Even the earliest systems, such as General Motors' CCC (computer command control) system had self diagnosis functionality. Directions point72 data scientist; engine mil inoperative or indicates a malfunction mercedes So basically your car has failed the MOT because there is an active or stored fault code on the ECU but no engine check light is on is the cluster, which could mean that someone has pulled the check engine light bulb out from the cluster to hide the fault. foss swim school sibling discount. international bridge wait time. and start communicating with your car! To average the emissions, you add both readings together and divide by 2. This warning light can indicate almost anything from a loose gas cap to a serious knock in the engine. If the HC reading is then 1,200ppm or less, the vehicle will meet both the CO and HC requirements. Engine MIL MOT FAIL - Advice for First-Time Car Owner Stop the engine and prompt the meter to do a zero check. Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) Advice. The light turns on only for a reason and you should not ignore it. |wL! zud6m$~*='e*amo=No:>n";!Qv:/odoE{T$Lz_>cRcx\ of>]vrcX9tD6A}9^uM}.:}^b3OmwYsSdZp ;E:ylm\#Rv,S.Xrcf% 8>,i. The only safe way to clear fault codes is to use a scan tool or code reader. Some codes, such as those for a bad catalytic converter or an EVAP leak are difficult to set and may take several day of driving before the right conditions are met to complete the monitor. How to Reset a Check Engine Light in 5 Simple Steps, 5 Reasons Why Your Check Engine Light Is On But No Codes, Check Engine Light After Oil Change - Causes & How to Fix, Check Gauges Light: What It Means and How To Fix It, 4 Reasons Why Your Check Engine Light Is Flashing & Fixes, Check Engine Light - What It Means and How To Fix It, ESP Light: What It Means and How To Fix It, Car Wont Accelerate But RPMs Go Up: Causes & Fixes. When the MIL is lit, the engine control unit stores a fault code related to the malfunction, which can be retrievedalthough in many models this requires the use of a scan tool. Common mistakes made by MOT testers - Matters of Testing Enhanced codes are often vehicle specific, and may not be readable with some code readers or scan tools. Customer: Audi A3 2010 Can a car fail mot on emissions because of lamda sonda? Does an MOT check tyres? You can change your cookie settings at any time. Structure My Deal tools are complete you're ready to visit Mercedes-Benz of Houston Greenway! Residual hydrocarbons are those that are picked up by the analyser when it samples clean air. On vehicles fitted with a diesel particulate filter, also check that no visible smoke is emitted from the exhaust during the metered check. MIL Illumination The MIL will illuminate with ignition switch ON and the engine not running. People usually get interested in the On-Board Diagnostics when the Malfunction Indicator Light illuminates on the dashboard of their cars. I went into the MOT centre and told them about the MIL light not being on the car and the reply was that it has to have an MIL light. Here are a few problems you might be dealing with and the approximate repair costs. martin county recent arrests. I would suggest that the Lambda sensor kaput. Use the flowcharts 1, 2 and 3 to decide which emission test is applicable for the vehicle being tested. Its also wise to take note of any other lights that came on at the same time. how do skins work in golf tournament; is lourdes gurriel jr hair real; . Check Engine Light (MIL) On! What It Means & What To Do 14 0 obj <> endobj Someone still has to check out the various components in the affected circuit or system to determine what exactly is causing the problem. You must make sure its safe by asking the vehicle presenter and carrying out a brief examination of the engine. Yes, tyres are checked on an MOT under Section 5.2. Make sure the engine is hot. Emissions limits of passenger cars first used on or after 1 August 1992, Chart 3. I got an OBD2 scanner that spat out Fault Fuel Volume P0002 and P0003. History codes, in particular, can shed light on why a certain fault may be occurring. Mercedes Diaz Homes, Inc. Website. Done with the tools you need? You can also get just about any technician to work on your mainstream vehicles, where it could take a special mechanic to repair your BMW or other foreign import. Secondly, your cost will change dramatically if you dont have a code scanner and/or you need a professional to repair the problem. On some vehicles it will be necessary to start the engine before the MIL goes off. Every time the OBD system turns on the MIL light, it will also store a Diagnostic Trouble Code (DTC) in the electronic control unit. Do not carry out unnecessary engine acceleration or prolonged high revving of the engine. Would you like us to send you price alerts? engine mil inoperative or indicates a malfunction mercedes. So, different types of MOT failures. My Golf TDi failed with emission issues. If the codes are cleared, it may take some time for the codes to reset - -which will delay diagnosing and repairing the fault. Does the yellow Check Engine Light come on when you turn the ignition key to the second position and then go of when you start the engine? They follow up on there service to make . You must use your judgement to assess exhaust noise: Exhaust noise from the vehicle must not be unreasonably above the noise level youd expect from a similar vehicle with a standard silencer in average condition. I have. The plate or sticker may be marked 24 R followed by a number to indicate the smoke limit (such as 0.24 in the example below). Referring to vehicle manufacturer technical service bulletins (TSBs) can save a lot of time and frustration for these kinds of problems. They said they know the issue, and would solve it when they repair the ABS pump in a week. As there are no warning lights on on the dashboard. First, the repair cost directly relates to what needs to be fixed. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Even if there is a balance tube between the separate pipes its still considered a dual exhaust. This is because, for example, the car will fail emissions testing if the MIL light is ON when tested. Sometimes, the Malfunction Indicator Light comes on because of something trivial, such as a loose gas cap. If you don't have a code reader or scan tool, some auto parts stores may do a code check for you at little or no cost (most dealers and repair shops do charge for this service). EMMY NOMINATIONS 2022: Outstanding Limited Or Anthology Series, EMMY NOMINATIONS 2022: Outstanding Lead Actress In A Comedy Series, EMMY NOMINATIONS 2022: Outstanding Supporting Actor In A Comedy Series, EMMY NOMINATIONS 2022: Outstanding Lead Actress In A Limited Or Anthology Series Or Movie, EMMY NOMINATIONS 2022: Outstanding Lead Actor In A Limited Or Anthology Series Or Movie. Our service technicians have the most up-to-date diagnostic equipment that can quickly read Mercedes-Benz OBD codes. This warning light can indicate almost anything from a loose gas cap to a serious knock in the engine. Key Principal: Mercedes Diaz See more contacts Industry: Residential care. This warning light can indicate almost anything from a loose gas cap to a serious knock in the engine. How long can you drive with check engine light on? Some American-built 19731976 Chrysler Corporation vehicles had a similar odometer-triggered reminder: "Check EGR", which was reset after service at a Chrysler dealership. Its a warning light that comes on the dashboard to tell you when theres a system malfunction. The light on indicates a malfunction which is a "major" defect. The Check Engine Light doesnt turn itself off until the problem that triggered it is repaired. For more information on how we collect and use this information, please review our Privacy Policy. An example of a manufacturers plate can be found in Section 2 of the Introduction. Failed MOT on Emissions - What could be the problem? If you cannot get a reading or the DSM shows an error, you must make a manual record to show that the emissions limits were tested and met but the DSM could not register the reading. Higher amounts of methanol/ethanol (or other additives) than the engine is equipped to handle may trigger the MIL (see E85). engine mil inoperative or indicates a malfunction mercedes News stories, speeches, letters and notices, Reports, analysis and official statistics, Data, Freedom of Information releases and corporate reports. Jumping to conclusions often results in a faulty diagnosis. Wed like to set additional cookies to understand how you use GOV.UK, remember your settings and improve government services. ), How to Reset a Check Engine Light (5 Easy Methods). Clearing the codes just before the test may allow the vehicle to pass -- provided the codes do not reappear while the vehicle is being driven to the test facility. It is related to emission failure. The maximum smoke level limit will be the level displayed on the manufacturers plate; or where there is no manufacturers plate information: For vehicles first used before 1 July 2008, the maximum level is: For vehicles first used between 1 July 2008 and 31 December 2013 the maximum level is 1.5m-1 for all engines. Something else to keep in mind about OBD2 fault codes is that some codes are false codes. You should fail a vehicle if a fluid leak creates a pool on the floor within 5 minutes thats more than 75mm in diameter or if there are many leaks which collectively leak fluid at the same rate. MOT inspection manual: cars and passenger vehicles If an engine has been modified in any way, it still must meet the exhaust emission requirements according to the age of the vehicle. For the sake of this article, lets assume that you need to have a professional fix the Malfunctioning Indicator Lamp. In this guide, we cover the basics of the Malfunction Indicator Light. Engine MIL inoperative or indicates a malfunction (8.2.2.2 (g)) All of these answers will help you get to the bottom of whats happening. In general, if the check engine light is flashing and the car is shaking then there is a problem with one or more engine components. You should do this with the engine idling. You need to average the emissions from both tailpipes - even if the system has a balance tube between the separate pipes. In pre-fuel injection years many cranking attempts were sometimes required to start the car. Some of the most common causes include: Tire pressure sensor failure: The RFI system relies on the tire pressure sensors to accurately detect changes in air pressure. Replace spark plugs and ignition coils: $250-$450. (What if not? You should also have the diagnostic trouble codes (DTC) checked as soon as possible with an OBDII code scanner. Gassing Station | Engines & Drivetrain | Top of Page | What's New | My Stuff, 1998 to 2023 Pistonheads Holdco Limited, All Rights Reserved, PistonHeads is a registered trademark of CarGurus Ireland Limited, Pistonheads Holdco Limited, c/o Legalinx Limited, 3rd Floor, 207 Regent St, London W1B 3HH, United Kingdom. It indicates more serious problem that requires action to be taken; the sooner the better. Editor's note: This post has been updated in March 2020 for accuracy and the latest information. engine mil inoperative or indicates a malfunction mercedes engine mil inoperative or indicates a malfunction mercedes. If a vehicle has an exhaust holed to the extent that it will fail its MOT, you should recheck the emissions when the exhaust is repaired even if the vehicle does not leave the testing station. Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? You paid them to resolve the issue with your EML on, they didn't resolve it. engine mil inoperative or indicates a malfunction mercedes. As you drive down the road, there are numerous warning lights that could appear on your dash, none of which are good. There are actually two different types. Well send you a link to a feedback form. It is not normally sufficient to run the engine with the vehicle stationary to warm it up to temperature. Unfortunately, there is no way to distinguish between them by just looking at the MIL. If the EML is shot it might be masking a fault that effects emissions that you could discover with a OBD2 code reader. You might have to wait for new data before you can get the heart of whats going on. READ MORE: Check Engine Light Is On But No Codes Causes & What to Do? Replace damaged catalytic convert: $1,500-$3,500. Make sure you follow the smoke meter manufacturers instructions. Talk to the garage that quoted you and did the work. Please provide your email address to begin receiving price alerts at home, at work, and on your phone. What is the Malfunction Indicator Light (MIL)? This flashing light is trying to get your attention and you would be wise to listen. CAUTION: Are you sure you want to erase the codes? The code might indicate a bad sensor, or it might indicate a loose connector or wiring problem. Press J to jump to the feed. In May I bought my first car, second hand from a family member, a Skoda Fabia 2009. For example, if the Check Engine Light and Oil Pressure Light come on at the same time, you know the car is struggling with oil pressure. You can tell that the engine is hot from any of the following: Make sure the engine is idling normally - to check this use the vehicle tachometer or attach an engine speed measuring device. TimesMojo is a social question-and-answer website where you can get all the answers to your questions. Allow the engine and any turbochargers to return to idle. These burn differently from gasoline, and the EFI system may mistakenly interpret the oxygen sensor's readings as being incorrect. Codes contain important diagnostic information a technician may need later to troubleshoot the system. Hold the engine at full fuel position until a release prompt is given and immediately release the accelerator pedal. Inorder to pass inspection your car needs to complete a full drive cycle so that all (8) internal monitors have a status of Ready. Engine oil temperature must be measured whenever possible, using the approved device. How to read the Diagnostic Trouble Codes and Reset the Check Engine Light, Mode 8 - The bidirectional controls in OBD2, How OBDII helps you when buying a used car. Vehicles first used after 1980 vehicles must have an instrumented smoke test and its important to ensure the engine is at least 80C or normal operating temperature if lower, before carrying out the test. Your vehicles check engine light will will reset by itself once the issue or problem has been repaired; this is true for most models. A wide array of issues can cause a check engine light to come on, some more serious than others. Mercedes Benz Auto Repair in Whittier, CA - Yellow Pages Make sure the engine temperature is above 80 degrees centigrade or at its normal operating temperature whichever is lower. Once the fix is complete, you can reset the codes and the light shouldnt come back on. Following the meter prompts, press down the accelerator pedal quickly and continuously so that the engine reaches full fuel position in less than one second. Some vehicles manufactured from the late 1990s to mid 2000s have a MIL that illuminates based on the odometer reading, regardless of engine operation. If a vehicle first used on or after 1 September 2002 is fitted with a different engine, you must test it to the standards for the age of the vehicle. You should always investigate the cause. Make the most of your secure shopping experience by creating an account. After evaluating a system or component for three consecutive times without detecting the problem, the light can be turned off. If the engine fails to start on the second or third attempt then an actual visual check of the engine could be required. Some of the OBD-II issues are relatively small. To learn more, read our tutorial on How to read the Diagnostic Trouble Codes and Reset the Check Engine Light with OBD Auto Doctor. However, if you dont spot an immediate issue, you will need to pay close attention to any other symptoms that are occurring. Garage is a few 100 yards from where I live and they started the MOT as I was walking out of the garage. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. If your light is on, and you are wondering why, head down to your local AutoZone where one of our store associates can help diagnose the issue through our free Fix Finder service. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Check Engine or Malfunction Indicator Light (MIL): Indicates the engine computer has set a Diagnostic Trouble Code. Fortunately Mercedes-Benz of Houston Greenway is here to help you figure out what might be wrong, and what your next steps should be. With some vehicles, the intermittent fault that occurred would have to be resolved for several trips before the light will go off on its own. Check Engine or Malfunction Indicator Light (MIL): Indicates the engine computer has set a Diagnostic Trouble Code. Get Driving Directions. With low oil pressure, it means insufficient oil will circulate within the engine and may cause severe engine damage. A trouble code is only a starting place. For example, in several Mazda models, the light will come on at 80,000 miles (130,000km) and remain lit without generating a computer trouble code. When you go to the Mode 06 menu, you can see the operating status of all the monitored components, whether there are any DTCs or not. When you take your car to the mechanic, he will test your cars battery before doing any further diagnostic testing. If a vehicle is being given an OBD II test, an illuminated Malfunction Indicator Light (MIL lamp) is grounds for failing the test. 87 0 obj <>stream Compression ignition engine emissions, 8.2.2.1. The purpose of this warning light is to indicate a detected problem with the car and alert the driver about the issue. For free, many of these locations will scan the computer and give you the codes. Can I drive with the malfunction indicator lamp on? You can check this from the temperature gauge, cooling fan switching on and off or by feeling hot coolant hoses. On some vehicles, loss of power to the PCM may cause it to forget transmission settings, climate control functions and other essential data. If the Check Engine Light comes on does it indicate a serious problem or not? Will My Car Pass or Fail the MOT? | NimbleFins engine mil inoperative or indicates a malfunction mercedes It can be alarming seeing an engine warning appear on your dashboard, especially if you've never seen it before. , TotalCarDiagnostics.com, All Rights Reserved. These include many problems not covered by the generic codes as well as problems that are outside the engine management system such as ABS codes, climate control codes, body codes, air bag codes, etc. in . Try OBD Auto Doctor for free. [citation needed] Volvo had a light labeled "lambda", lambda sond being another name for oxygen sensor. As you can see, there are multiple possibilities so it takes some diagnostic expertise to isolate the fault before any parts can be replaced. However, an 09 fabia isnt the worse place to start. Insert the analyser probe into the exhaust. If the engine speed is clearly above the vehicle specific limit and it can be easily adjusted, you can adjust it and complete the test - the adjustment is not, however, part of the MOT test. All Rights Reserved. If an engine sensor is faulty, the car will usually use made up sensor values to keep running. You get the same garage to also do an MOT test. %PDF-1.5 % Either way, the only way to decipher the trouble is with an OBDII code scanner. In this case I would not have agreed to send the abs pump off. Some vehicles give unstable readings. Has the check engine light turned on in your Mercedes-Benz C-Class, E-Class, GLA, GLC, GLE, ML, or SL? Printer Friendly View Address: 7239 Washington Ave Ste 100 Whittier, CA, 90602-1432 United . The Halford's branch is barley a 30 second drive from where I live. Its important that you know what to do when the Malfunction Indicator Light Illuminates, so you can get back on the road with peace of mind. Will check engine light come on for battery? engine mil inoperative or indicates a malfunction mercedes engine mil inoperative or indicates a malfunction mercedes. How to Remove the Dealer Sticker From Your Car, Service Engine Soon Light: What It Means and How To Fix It. You do not have this, so do not worry about this. Copyright 2010-2023 Creosys Ltd. All rights reserved. Its done just over 3,000 miles since its MOT last year and then it passed the emissions test with flying colours. The vehicle presenter must have proof of the age of the engine. If you are behind the wheel of a common vehicle, such as a Chevy or Dodge, your parts might not be as expensive as the luxury automobile, such as an Audi or Mercedes-Benz. READ MORE: Will the Check Engine light Reset Itself? Oxygenated gasoline can cause this false triggering in early EFI systems. Are there any unusual smells or sounds? Not tested or Unable to be tested must only be used where it becomes apparent during the test that the particular item cannot be tested, and this could not have been identified prior to starting the test. But it should go out when the engine is running. There are several potential causes for the "Run Flat Indicator Inoperative" error message, along with ABS and ESP malfunctions in Mercedes-Benz vehicles. The Malfunction Indicator Light (MIL) is also known as the Check Engine Light. Make sure youve removed any oil temperature probes. Generic OBD II codes all start with "P0" while the OEM enhanced codes all start with a "P1." Check engine light - Wikipedia If the light begins flashing, however, it indicates a more serious problem, such as a misfire that can quickly overheat the catalytic converter. Customer: (8.2.1.2 (h)) JA: What's the make, model, and year of your car? Press question mark to learn the rest of the keyboard shortcuts, 03 Celica, 05 Corolla, 03 Corolla T Sport, Y Reg Fiesta. You cant drive a misfiring engine very long without causing additional damage. indicate YP advertisers who directly provide information about their businesses to help consumers make more informed buying decisions. What is a engine mil inoperative or indicates a malfunction? You only need to check components that are visible and identifiable, such as diesel oxidation catalysts, diesel particulate filters, exhaust gas recirculation valves and selective catalytic reduction valves. Plus, pulling the battery can also cause some annoyances that arent worth dealing with. Front wipers smearing . Engine MIL inoperative or indicates a malfunction (8.2.2.2 The HC reading obtained must therefore be divided by the propane/hexane equivalency factor (PEF) marked on the gas analyser. Turn on the ignition and check that the engine malfunction indicator lamp (MIL) illuminates and then goes off. Kit cars, amateur built vehicles and American pickups are not required to be fitted with an engine MIL. The vehicle has passed the opacity test if any of the following happens: If the smoke levels from the first acceleration were significantly higher than the limit, you can choose to not complete the test. Repair immediately (major defects): Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) Since it's failed now it's not like I can drive it off the lot and I'm planning to call them tomorrow but I wanted to see if anyone could give some advice to me. The check engine light means theres a problem somewhere in your emissions system. I had to go for a long trip shortly after seeing the garage so didn't take my car back for a few months, still check engine light is on. engine mil inoperative or indicates a malfunction mercedes engine mil inoperative or indicates a malfunction mercedes. If you keep driving with the malfunction indicator lamp on, you can damage your cars emissions controls and engine. Sold by Beck Evans for 18k if anyone wants to see the listing. Get a D&B Hoovers Free Trial. 65 0 obj <>/Filter/FlateDecode/ID[<204B380C06001247EC15A45BEE9555AD><933903C6C3B1E845AC4BC080DBF23BDE>]/Index[14 74]/Info 13 0 R/Length 199/Prev 148005/Root 15 0 R/Size 88/Type/XRef/W[1 3 1]>>stream They are always willing to change a bulb or check oil or coolant just to because they care. Depending on how the system is configured and the nature of the problem, the Malfunction Indicator lamp/light may come on and go off, remain on continuously or flash -- all of which can be very confusing because you have no way of knowing what the light means. Do you notice any performance troubles? The way your check engine light is behaving though can help you determine what might be wrong with your Mercedes-Benz, and the severity of the issue. Tighten or replace a loose or broken gas cap: $25-$75. Use the flowcharts 1, 2 and 3 within this section to establish which emissions test and limits you must use for the vehicle under test. One way you can save money is to visit a local auto parts store if you dont have your own code scanner. If you retest a vehicle that failed for smoke emissions exceeding the manufacturers specified limit using the vehicle plate value, you must retest the vehicle to the same plate value. If the vehicle fails the emissions test, a copy of the result print out must be given to the customer. I thought maybe me stalling would have been messing with it a bit since when my dad (he is also insured on it) drove it the light would sometimes turn off. Is there a specific trouble code and/or are any warning lights on? If a component is not operating within normal limits, it will be flagged and may set a DTC later. MIL ON indicates that the check Engine Light should be ON. For emissions purposes only you should treat the following as first used before 1 August 1975: To prevent the build-up of fumes, the test should be carried out in a well-ventilated area. . No matter the situation, when the check engine light comes on in your Mercedes-Benz, we always suggest stopping by our service center so one of our knowledgeable technicians can properly diagnose and repair your vehicle. If the engine warning light comes on after the engine has started, a fault has been detected. endstream endobj 15 0 obj <> endobj 16 0 obj <> endobj 17 0 obj <>stream What does engine mil inoperative mean on MOT? - TimesMojo hbbd```b`` qdeX?L,1Xr0)\-`3CA!XM>Hi$"?*ciH`[`0i"9}s;"`sJ"g&! by. Use the flowcharts 1, 2 and 3 to decide which emission test is applicable for the vehicle being tested. 3900 Southwest Freeway (b) Any part of the noise suppression system: (a) Emission control equipment fitted by the manufacturer: missing, obviously modified or obviously defective, (b) An induction or exhaust leak that could affect emissions levels, (a) Emissions levels exceed the manufacturers specified limits, (b) Emissions levels exceed default limits, (c) Lambda coefficient outside the default limits or the range specified by the manufacturer, (d) Emissions test unable to be completed, (e) Engine is idling clearly above its normal idle speed, (f) Exhaust emits dense blue or clearly visible black smoke for a continuous period of 5 seconds at idle, (g) Exhaust emits excessive dense blue or clearly visible black smoke during acceleration which would obscure the view of other road users, (a) Emission control equipment fitted by the manufacturer missing, obviously modified or obviously defective, (c) Evidence that the diesel particulate filter has been tampered with, (a) Smoke opacity levels exceed the manufacturers specified limit, (b) Smoke opacity levels exceed default limit, (c) Exhaust emits excessive smoke or vapour of any colour to an extent likely to obscure the vision of other road users, (d) Exhaust on a vehicle fitted with a diesel particulate filter emits visible smoke of any colour, (e) Emissions test unable to be completed, (f) Emissions test not completed because smoke levels are significantly in excess of the specified limit values, under-bonnet noise deadening material fitted as original equipment - you do not need to inspect this for Class 3 vehicles, during the emissions test for the vehicle, rev the engine to around 2,500rpm or half the maximum engine speed if this is lower on vehicles not subject to an emissions test, petrol vehicles including hybrids with 4 or more wheels, not more than 8 passenger seats in addition to the drivers seat and first used on or after 1 July 2003, petrol vehicles including hybrids with 4 or more wheels, more than 8 passenger seats in addition to the drivers seat and first used on or after 1 July 2008, gas and bi-fuel vehicles including hybrids with 4 or more wheels, not more than 8 passenger seats in addition to the drivers seat and first used on or after 1 July 2008, hybrid vehicles - with electric and combustion engines, two-stroke engines - unless they are subject to a catalyst test, kit cars and amateur-built vehicles first used before 1 August 1998, Wankel rotary-engined vehicles first used before 1 August 1987, is constructed or adapted to carry passengers, has up to 5 passenger seats, excluding the drivers seat, is not a goods vehicle, such as a pick-up or a car-derived van, getting the DGW from the manufacturers VIN plate, checking if the vehicle is listed in section 2 of the current emissions data book, checking the owners handbook or a data book, measure the exhaust gas for at least 5 seconds at idle, determine the proportion of carbon monoxide (CO), determine the proportion of hydrocarbons (HC) - you do not need to do this for vehicles using compressed natural gas (CNG), the engine is idling normally - if this is not possible, you can use light throttle pedal pressure, any enrichment device, like a choke, is not operating, there is not significant electrical loading, such as heated seats or heated rear windows, CO up to 0.2% at fast idle (2,500rpm to 3,000rpm), HC up to 200ppm at fast idle (2,500rpm to 3,000rpm), Lambda between 0.97 and 1.03 at fast idle (2,500rpm to 3,000rpm), CO up to 0.3% at idle (450rpm to 1,500rpm), the camshaft belt is in an unsatisfactory condition, that the vehicle passed the emissions test, no record was produced due to low emissions, the first acceleration showed that the smoke level was at 60% or less than the limit for the vehicle, the mean smoke level from the first 3 readings was at or less than the limit for the vehicle, the mean smoke level from any consecutive 3 readings was at or less than the limit for the vehicle.

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engine mil inoperative or indicates a malfunction mercedes