Q: I cannot turn my key in my ignition. The key is not stuck, just unable to turn.

Basically, anti-pinch works by measuring the amount of electrical current the motor uses that drives the glass up and down. Like practically everything on a modern car, the windows are controlled by an electronic control unit (ECU) (https://www.yourmechanic.com/article/how-your-ecu-uses-sensor-data). When you...

This vehicle may have a couple problems that need to be addressed. The first is the torque convertor of the automatic transmission has issues of internal lock up clutch slips or chatters causing jerking or bucking. The transmission would need...

Hello it sounds like you have two problems here. Both of theses should be handled sooner than later. For the power steering the fluid level should be checked and see if the belt is on the pulley. If the fluid...

There is most likely an electrical component that has failed, causing the battery to drain. These can be very tricky to diagnose. Basically, you need to be able to measure how much current is being drawn from the battery when...

Hello. If the A/C won’t blow cold air, this is usually due to: Lack of refrigerant in the A/C system (https://www.yourmechanic.com/services/ac-recharge) A/C compressor has stopped working (https://www.yourmechanic.com/services/ac-compressor-replacement) Blockage in the A/C system It will first be necessary to have the...

It sounds like your cooling fan (https://www.yourmechanic.com/services/cooling-radiator-fan-motor-replacement) kicking on and off. It's even louder and more pronounced when the AC is on. The strain on the engine also will cause the RPMs to jump up a little bit during these...

Your vehicle was available with both halogen headlights or optional HID headlights (https://www.yourmechanic.com/article/how-a-vehicle-s-headlights-work). The HID headlights bulbs will have a small metal "box" at the rear of the bulb, which is the "igniter" for the bulb. Halogen bulbs will not...

Many vehicles have two separate fans. 1 fan is used for the engines radiator. The other thing is used only when the air conditioning is running. The fact that a fan kicks on when the air conditioning is running as...

Hello there, the P0600 code (https://www.yourmechanic.com/article/p0600-obd-ii-trouble-code-serial-communication-link-malfunction-by-spencer-clayton) is not one that is normally seen on your 2003 Mercedes ML350. The P0600 code tells us there is a communication link issue with the ECU. This may have been caused by the fuel...