Skip the auto shop - Our mechanics make house calls

Q: Brown sludge in my water

asked by on

I have a brown sludge in my water. I don't have any water in my oil and I don't have any kind of engine over heating or anything at all like that. It isn't a lot of sludge it's just worrying.

Thank you
My car has a manual transmission.

This suggests that you may have a blown head gasket. This can happen when the car overheats which compromises the cylinder head gaskets. When this happens, oil can leak into the coolant passages which eventually end up in the radiator. This will also cause the car to overheat which may be indicated by white smoke coming out of the exhaust. I would recommend also checking the oil which will also likely have water in it. If this is the case, you may likely have a blown head gasket. I would recommend having an expert from YourMechanic come to your home to diagnose and repair.

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
  1. Home
  2. Questions
  3. Brown sludge in my water

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: About how much time should it take a certified bmw mechanic to analyse the cause of a squealing noise from the engine?

Over time, your car's engine belts may become worn causing them to stretch. When this happens as you press the gas pedal and the belt goes from a relatively low speed (at idle or when first starting the car, no...

Q: How do you reset the seat belt light on a 2006 Murano?

You will need to have your body computer scanned to get the codes from the seat belt module. If may have stored the code due to the battery was not disconnected when seat was removed causing the system to see...

Q: BMW 640i hazards came on on automatically & car won't start &

Your car may be in anti theft mode. In some cases the alarm may not sound, but the flashers will go and the engine ECU will lock down to prevent the car from being driven. It might be that the...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...