Skip the auto shop - Our mechanics make house calls

Q: Oil in the coolant tank, what are the possible causes please. What logical method of fault finding can I use to source the leak.

asked by on

My 2005 CLK-350 has Oil in the coolant tank, what are the possible causes please. What logical method of fault finding can I use to source the leak.

A: The transmission oil cooler is inside of th...

The transmission oil cooler is inside of the radiator and it may be leaking internally. If this is the case, you would need to replace the radiator and flush out the cooling system. If you’d like to get this fixed, have the leak pinpointed by a certified technician, such as one from YourMechanic, that way an accurate repair can be made.

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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

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: Electrical disconnect

The unfortunate part of electrical scenarios like this is, vehicle electronics and their sensitivity to voltage surges. Even something seemingly innocent like static discharge. If you were for example, holding the car's ecu in your hand and a static discharge...

Q: My car will crank but won't start. It gets fuel and I just replaced the coil pack - what could be the problem?

With a crank no start condition, you need to first determine what your motor is missing. Spark, fuel pressure, injector pulse or cam timing. This is best done with a fuel pressure gauge, a noid light to check for injector...

Q: Finding a rear axle leak on a 2000 Dodge

Normally it is either the gasket that is leaking at the back or the seal is leaking on the front pinion shaft where the drive shaft goes in and spins around. If you really want to find out what it...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...