Q: My car cranks but will cut off shorts after starting up. If i start it up again, it will crank but runs and tries to cut off. 2009 Mercedes Benz C300

The seat switch would need to be checked for a short to the power which is keeping the switch engaged in one direction or another. I recommend having a mechanic, such as one from YourMechanic, come check the system to...

Hello there. A few different things can cause the AC to shut off after a short while. The first being an overfilled AC refrigerant. When this occurs, the pressure in the system rises too high and causes the AC to...

Hi there. This is not an uncommon fault. The most likely causes would be low transmission fluid (https://www.yourmechanic.com/services/transmission-fluid-service), a shift solenoid (https://www.yourmechanic.com/services/downshift-solenoid-replacement), transmission mounts (https://www.yourmechanic.com/services/engine-mount-replacement), or a drive shaft (https://www.yourmechanic.com/services/driveshaft-replacement). Your best bet may be to have a qualified professional,...

Your description of the lack of oil tells me your engine is probably already badly damaged. The main problem is you drove it home with the problems you have described. The only way to save a motor from damage when...

Hi there. Typically a bad motor mount will make a clunking sounds as the vehicle begins to accelerate or decelerate. The grinding sound while acceleration and turning is a common symptom of a bad or failing wheel bearing (https://www.yourmechanic.com/article/symptoms-of-bad-or-failing-wheel-bearings) as...

Hi there. The code for P0336 (https://www.yourmechanic.com/article/p0336-obd-ii-trouble-code-crankshaft-position-sensor-a-circuit-range-performance-by-jamahl-walker) is referring to the crankshaft position sensor loosing a signal to the computer. I recommend replacing the crankshaft position sensor and it should fix all of your problems. If you need further assistance...

The problem with swapping engines is that these type of fitting issues tend to happen more often than not. In most cases, the flywheel is not properly aligned with the starter or transmission; causing the starter to not engage correctly....

The knock sensor is the most likely cause of the P0326 trouble code. It is also possible that the wiring that goes to the knock sensor could have an issue but this is unlikely. The P0420 code is likely due...

Hi There, This should be a 10 amp fuse that operates the radio and clock. The other possibility that may cause this could be your ignition key tumbler that may be causing the key to get stuck as the tumblers...