It sounds to me like you could have an issue with your ignition switch. I would recommend having your ignition switch tested by a qualfied professional to determine if it is working properly. The ignition switch is what causes your...
Hi there. The problem with stripping a coolant line is that although it might appear to be tight, as it heats, it will most likely expand and create a leak. If you are using the same coolant line inserted into...
Hello there, a cut plug for the radio of your 2001 Mercedes ML320 is a large problem. The radio plugs are most often cut when an aftermarket radio and speakers are installed. With wiring that has been damaged or cut...
Hello, thank you for writing in. The vehicle may need a series of tests at this point. With no diagnostic codes to assist us in diagnostics, the power steering system components will need to be tested individually. When you refer...
Hello. When an issue like this turns up with this many codes I usually start by checking the fuel pressure. If the fuel pump is failing and not creating the right pressure then you will get multiple misfires. If the...
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...
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 - if replacing the crankshaft position sensor (CPS) recently was done in response to a "stalling when slowing down problem", I would have a diagnostic check done first before performing other maintenance. Replacing the CPS could have been an...
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...
In most cases, it may be the a/c compressor clutch that has stopped working, but it won't hurt to check the fuses. If you do find a blown fuse, something happened along the electrical circuit that drew a higher current...
Your check engine light 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 the...
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...
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 to the throttle position sensor or complex issues with...
Hi and thanks for contacting Your Mechanic. Since the problem started when you had replaced the battery, check the wires to the battery and make sure that they are not corroded. Also, check the battery cables for they are on...
These problems are not related. But both problems are quite common on your model car. Your P0221 code refers to the throttle position sensor; a sensor that detects the amount that the throttle itself is open. You might not notice...
Be sure not to drive the car if it is overheating because overheating can warp the cylinder head and/or engine block causing costly damage. The most common causes of overheating include low coolant level, a faulty thermostat, a plugged radiator,...
Hello, The battery light indicates you likely have a dead battery as a result of leaving the lights on. The yellow fluid light is your oil light simply indicating there is no oil pressure, which is normal for the car...
Hello, thank you for writing in. An output speed sensor on your vehicle would likely trigger a P0720 engine code. If this sounds like the correct sensor, then you are looking at the speed sensor located on the transmission's electrical...
