Skip the auto shop - Our mechanics make house calls

Q: The car don't start. It's a Mercedes C class C200

asked by on

A message was on the dashboard saying engine coolant low was on for maybe a month or so I looked at the level it seemed OK I was going to take it to a garage next two days. The car didn't start this morning. Last night maybe a mile away from home the engine light came on I stalled then all the lights came on, on the dashboardon, I turned off the car. I tuned the car on again and came home , then this morning didn't turn on I try to jump star it but it didn't. I noticed that a black liquid came out of the cooler tap I opened it and the liquid was kind of thick and black. What do you think is wrong with it. Many thanks Mimosa

My car has 130000 miles.
My car has a manual transmission.

The black liquid coming out of the coolant cap is most likely oil in your coolant. This is typically a sign of a blown cylinder head gasket. This can happen when the car overheats to an extreme level or has been overheated for a long period of time. If the coolant level has been low for a month, this is likely a result of this. When this happens, this head gasket will leak oil into the coolant and cause a major drop in compression as a result of not being able to seal off the combustion chamber. This is what causes the car to stall. I would recommend having an expert from YourMechanic come to your home to inspect the liquid and diagnose the starting problem in order to have this corrected.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: After fuel pump & filter replacements, car won't start

Hello there, I'll be happy to assist you! The problem is likely within the VATS (Vehicle Anti-Theft System) of the vehicle. More specifically the issue you are having is generally caused by broken sensor inside of the ignition lock cylinder....

Q: Car will not turnover. Just one click when the key is turned. All electronics (radio, lights, etc.) are working.

Hi There, Generally, when turning the key produces one single click sound, this often times indicates you may have a faulty starter solenoid. A faulty starter solenoid will generally produce a clicking sound when turning the key. The starter solenoid...

Q: I had a wheel bearing replaced, now it seems to be worse 5 days later

I can see two possibilities. Either the bearing was damaged during the replacement, or the diagnosis was wrong and the wheel bearing was not the original problem. If the wheel bearing was damaged during replacement, then he is obligated to...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.