SOURCE: oil in water resovour vw 2002 passat
This is probably a head gasket problem and not an oil cooler problem.
The oil cooler is fairly easy to test.
Remove the cooler from the engine but do not disconnect cooling lines and then pressurize the cooling system. You can use a radiator test tool to put pressure on the cooling system and look for leaks. If it leaks, replace it.
You may also be able to bypass the oil cooler altogether if it leaks.
The head gasket is another story.
Get a 1/4" pipe to spark plug fitting and put a male air coupling fitting in it.
Then you can charge the cylinders with air from your compressor.
Make sure each cylinder that you test is at top dead center so that the valves are closed.
If air bubbles into your coolant, you found your problem.
If air leaks out your intake you have a bad intake valve
If air leaks out your exhaust you have a bad exhaust valve etc.
If you find this useful, please take the time to rate it.
Tim
SOURCE: Removing front calipers to 2003 vw passat w8
go to a tool store and ask for an easy-out, this is a specialty tool placed on a drill to grip stripped screws and broken bolts
SOURCE: oil in water resovour vw 2002 passat
Could be just the OIL COOLER. VW IS CORRECT.
If the oil cooloer fails internely you will have a mix of coolant and oil. In the engine and in the Radiator,
But not to say the other guys were wrong...
SOURCE: Where is the coolant temp sensor on the 2003 VW
The coolant temperature sensor on the V6 Passat is located on a pipe
that crosses between cylinder heads on the firewall side of the engine.
A. You will need to remove the plastic cover over the intake manifold.
B. Remove the air filter housing
c. disconnect the Mass Airflow Sensor
D. Loosen the clamp on the far end of the flex pipe going into the intake
Gently pry the flex pipe off the plastic housing and slide it off
the sendor is located around E.
SOURCE: 2003 VW Passat Power Steering Fluid
There is a tank under the hood with a STEERING WHEEL icon on it. DON"T OVERFILL and use only PENTOSIN
Testimonial: "Very easy to fix with your advice and expertise."
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