Q: won't start almost dies

The clear coat is a final coat of clear paint which helps protect the color coat on your vehicle. This coat is exposed to many environmental conditions like sun, acid rain, bird droppings, and bug damage. The exposure can cause...

When your Check Engine Light comes on (https://www.yourmechanic.com/services/check-engine-light-is-on-inspection) or flashes on the dash for you it is indicating there is a problem in one of the vehicle systems and has set a trouble code stored in one of the modules’...

Hello. Many different faults will cause your 2009 Mercedes C300 to cut off after starting. The most common would be a fuel pump (https://www.yourmechanic.com/services/fuel-pump-replacement), fuel filter (https://www.yourmechanic.com/services/fuel-filter-replacement), battery (https://www.yourmechanic.com/services/battery-replacement), alternator (https://www.yourmechanic.com/services/alternator-replacement), battery cable (https://www.yourmechanic.com/services/battery-cable-replacement), crank sensor (https://www.yourmechanic.com/services/crankshaft-position-sensor-replacement), or camshaft position...

Coolant leaks (https://www.yourmechanic.com/services/coolant-is-leaking-inspection) can originate from a few different places. A pressure check of the cooling system can be performed, subjecting the entire system to higher-than-normal pressures under controlled circumstances to find weak points. Leaks could be coming from hoses,...

This sounds like you may not have any power going to the fuel pump relay (https://www.yourmechanic.com/services/fuel-pump-relay-replacement). The relay wires should have ground on two wires, power on one wire and switched power on another wire. To activate the fuel pump...

Hello. We will be happy to assist you. The repairing of your oil leak should be able to be spaced out over your next oil changes, depending on the severity of the leaks. The technician working on your vehicle should...

There are a number of other things that may cause the motor to run hot such as a stuck thermostat or faulty cooling fans that may not be coming on at the correct intervals or speeds. The thermostat regulates the...

Is the engine "new" or "re-built"? If it is a used engine, check engine compression. Loss of power on acceleration can be due to plugged fuel injectors, faulty oxygen sensors, fuel pump and/or filter, vacuum leaks including that caused by...

Hi Paul. Thanks for sending the question tonight. To be honest, when wholesale replacement jobs like you've described are completed, multiple issues can be missed, incorrectly installed or even have compatibility issues that can lead to a vibration. If you...