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The smoke you see is made up of the visible particulates that are emitted as a normal part of the combustion process of a diesel engine. There are other non-visible emissions (https://www.yourmechanic.com/article/5-Essential-Things-to-Know-About-Car-Emissions) in the exhaust also, like nitrous oxide. Diesel...
Your car’s seat belts are much more advanced than what was available even a few years ago. They’re much more than just belts designed to be tightened on buckling. In fact, they work with your air bag system to enhance...
The speedometer is calibrated to read the correct miles per hour and distance driven at the speedometer factory. Are you sure you misread the odometer to be 1.2 miles and not 12 miles? If the far right number is a...
Hi there. Disconnecting and re-connecting the battery, although the right thing to do while working on the fuel system, has tripped the security system and is not allowing a "start" sequence. (You don't mention it, but the security light in...
You will need to jack up the front wheels and see if the tires will turn freely. If both front wheels are binding then you should try to loosen the brake lines that connect to the master cylinder to see...
This may be related to a dirty or failing idle air control valve. The idle air control valve reads the air intake as it is mixed with fuel prior to being injected into the engine at low speeds and at...
In 1988 Mercedes did not display trouble codes on the dashboard. The display you are seeing is a maintenance reminder. It counts the miles down until a scheduled service, then counts the miles up when you have passed the service...
Hi there. Your alternator may not be working properly. If so, turn off all the lights and have the engine running at night. Then from an idle condition, rev up the engine. If the brake and battery light become brighter,...
OBD-II PCMs have circuit protection to take account of the possibility of shorted actuators (fuel injectors, coil drivers) and other electrical overloads. Statistically, the PCM is probably the most reliable component on the entire vehicle. If the cause of the...
Your Your vehicle has several different positions or settings for the headlights, and it is important that you learn how to use them appropriately and in the right situations. It is also important to recognize when the high beams (https://www.yourmechanic.com/services/high-beam-is-not-working-inspection)...