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ML320

The bulbs are xenon type bulbs and they will fade away before they burn out. My suggestion would be to replace both headlight bulbs (https://www.yourmechanic.com/services/headlight-bulb-replacement). This way you do not change one and the other burns out in a few...

There are several reasons why your window might be inoperable. Switches and motors are common failure items. The window switch on the drivers door is the master switch. Sometimes when it fails, some of your other windows might stop working...

Hi there. Assuming this is a standard type ignition switch, with the description of events you provided. I am concerned that the tumblers in the lock cylinder may have been damaged, when the half key was turned. The key turning...

Mercedes stopped including dipsticks on their cars when they switched to electronically controlled transmissions. One of the reasons was to discourage the owners from doing just what you are trying to do. The transmission fluid is unique, and adding dexron...

Hi there. After having the EGR (engine gas recirculation) valve replaced, the vacuum lines replaced, and the tubes cleaned out, then there could be an electrical issue with the EGR system. Check the EGR harness with a digital meter and...

Billing question sent to CS about repair cost for a fuel leak as fuel is being poured in.

Hi and thanks for contacting Your Mechanic. Since the problem started when you had replaced the battery, check the wires to the battery (https://www.yourmechanic.com/services/service-battery-cables) and make sure that they are not corroded. Also, check the battery cables for they are...

I'll agree with the shop on this one. The yaw sensor (https://www.yourmechanic.com/services/yaw-rate-sensor-replacement) is a very sensitive device designed to measure the sideways force on a car during a turn and it's part of the Vehicle Stabilization System. It has a...

The most likely issue in this situation is with the EGR valve. Problems with the EGR system can lead to misfires. The exact problem with the EGR will need to be diagnosed with some further testing. The EGR valve itself...

Hi there. If you're having problems with the steering wheel and ignition cylinder being locked and the vehicle is having issues starting, the problem may be with the ignition lock cylinder (https://www.yourmechanic.com/article/how-to-replace-an-ignition-lock-cylinder-by-timothy-charlet). Sometimes the components inside the ignition lock cylinder...

The normal opening temperature of the thermostat is between 85c and 102c. Your car is running in the middle and this is good. You should not be overheating as this is the normal operating range for your engine. If you...

Your check engine light (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) may come on for many different reasons such as a faulty mass air flow sensor, a faulty O2 sensor, a bad catalytic converter, bad spark plugs or wires and many other reasons. Unfortunately due to...

Hello. I strongly suggest having the ABS system evaluated by a technician. There are components that could fail which will cause the ABS light to illuminate (https://www.yourmechanic.com/services/abs-light-is-on-inspection) such as the wheel speed sensor, the abs module, or a hydraulic issue....

Typically a throttle position sensor (TPS) is tested using a multimeter. The specs to compare against are published in the Factory Service Manual. As long as the TPS tests within the range of published values, and does not display intermittent...

Hello. The codes that you have listed are for engine misfires. P0300 is for random misfires, while P0304, P0305, and P0306 are for specific cylinder misfires. Misfires can be caused by many things. If you have already replaced the MAF,...

Lack of power and shaking can be caused by a number of components. Misfiring can reduce power and cause shakes. Misfires can be ignition related like from bad spark plugs or ignition coils. Also from sensors such as the crankshaft...

Hi there: To be completely honest, there could be multiple issues with your 2008 Mercedes-Benz that are causing the symptoms you're describing, ranging from something simple like a crankshaft position sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-crankshaft-position-sensor) to the throttle position sensor (https://www.yourmechanic.com/services/throttle-position-sensor-replacement) or complex...

Hi there. The P0400 EGR (exhaust gas recirculation) valve code may not be a valve not working. This code description is a EGR flow malfunction. The fact that your vehicle has multiple cylinder misfires leads me to believe the valve...

Hello, thanks for writing in. If the engine is only stalling when coming to a stop, then it may be a defective crankshaft sensor (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-crankshaft-position-sensor) that was installed or commonly this is caused by a dirty or failing throttle body....

Hello. When this occurs all of a sudden I would usually start by checking the transmission control module for codes. This would let me know if there are any foreseen electrical issues. If there are no codes then the fluid...