Q: My 1996 S420 mercedes will start and i replaced the shifter module assembly now its rolling in reverse while in park.

If you have an EX-L or an EX-L V6 without the navigation system, you may need to calibrate your compass periodically. There are several reasons your compass may lose its bearings, including a dead battery, or even driving near power...

If you have the GS model, that means you have the supercharged version of the 3.8L engine. The naturally aspirated 3.8L has problems with the intake gasket leaking, which results in coolant/oil intermix. However, the supercharged version is not as...

Unfortunately, yes, this is normal for "run-flat" tires. In order to be able to run flat, they have very stiff sidewalls to support the vehicle when there is low/no air pressure in the tire. Check out major tire outlets (like...

Hello there. The charging system on the car may not be charging the battery as you drive and the systems that keep the engine running are priority so the engine will stay running until the voltage drops below about 9...

This may be a sign of a failing throttle position sensor. The throttle position sensor (TPS) is a sensor used to monitor the throttle position of the throttle plate inside the throttle body in relation to your foot position on...

The cost varies significantly from the 2WD version to the 4WD version. In any event, the possibility of an on car repair should be considered first. Also, depending on the condition of the transmission, it might be less expensive to...

Hi There, It sounds like you may have a clogged catalytic converter (https://www.yourmechanic.com/services/catalytic-converter-replacement) that may be causing the vehicle to struggle to accelerate. There are a number of reasons that may cause the catalytic converter to fail. They include: O2...

Yes, firmware, the BCM (body control module), temperature outputs, the harness, faulty batteries, could all be potential causes of this sort of intermittent fault. The problem you having is probably not common though because I do not see a pattern...

What you are describing sounds like you may have a clogged or damaged catalytic converter. The catalytic converter (https://www.yourmechanic.com/services/catalytic-converter-replacement) converts toxic exhaust gases into less harmful pollutants that are suitable to be expelled into the atmosphere. When the catalytic converter...