I bought a Touareg R5TDI facelift with an oil cooler problem.
As it is a frequent problem with the R5 engine, i will write down what i did to replace my oil cooler step by step.
A few symptoms:
- Oil in coolant reservoir but no coolant in the sump
- Coolant warning light went on but there was enough water in the reservoir
- Engine temperature did not reach 90°C
I searched on Elsawin how i should remove the cooler and it writes that the AC pump ant the whole oil filter/cooler module has to be unmounted.
Because i was curious how much soot there was in my intake and EGR valve, i decided to take of my intake manifold to do the job.
Removal:
- Remove the cover from the engine and the bottom plate
- Remove the thermostat so all the coolant and oil can flow into the bucket
- Remove the hose from the intercooler to the egr valve.
![Image]()
- Remove the steel egr tube that connects the egr cooler with the egr valve.
- Remove the electric wires from the egr valve and the intake valve
- Remove the valves from the intake manifold by removing the 3 torx bolts.
- Remove the intake manifold
![Image]()
- Remove all the water hoses from the 2 black tubes which are on top of the oil filter module. You can push the tube a bit out of the way to access the bolt of the oil cooler.
- Remove the plastic isolation plate on front of the engine. You can lower it without removing the electric wire harness.
- You can now remove the oil cooler. You must have some handling to unbolt the oil cooler. I did it with an endoscope (Very handy for other applications on the Treg :wink: )
![Image]()
![Image]()
Installation: By removing all the removes and replace it by install :drunk:
The reason why i did take off my intake:
![Image]()
Hopefully this is a helpful thread for all touareg drivers.
KR, Bart
(Sorry for my Belgian english :wink
As it is a frequent problem with the R5 engine, i will write down what i did to replace my oil cooler step by step.
A few symptoms:
- Oil in coolant reservoir but no coolant in the sump
- Coolant warning light went on but there was enough water in the reservoir
- Engine temperature did not reach 90°C
I searched on Elsawin how i should remove the cooler and it writes that the AC pump ant the whole oil filter/cooler module has to be unmounted.
Because i was curious how much soot there was in my intake and EGR valve, i decided to take of my intake manifold to do the job.
Removal:
- Remove the cover from the engine and the bottom plate
- Remove the thermostat so all the coolant and oil can flow into the bucket
- Remove the hose from the intercooler to the egr valve.
- Remove the steel egr tube that connects the egr cooler with the egr valve.
- Remove the electric wires from the egr valve and the intake valve
- Remove the valves from the intake manifold by removing the 3 torx bolts.
- Remove the intake manifold
- Remove all the water hoses from the 2 black tubes which are on top of the oil filter module. You can push the tube a bit out of the way to access the bolt of the oil cooler.
- Remove the plastic isolation plate on front of the engine. You can lower it without removing the electric wire harness.
- You can now remove the oil cooler. You must have some handling to unbolt the oil cooler. I did it with an endoscope (Very handy for other applications on the Treg :wink: )
Installation: By removing all the removes and replace it by install :drunk:
The reason why i did take off my intake:
Hopefully this is a helpful thread for all touareg drivers.
KR, Bart
(Sorry for my Belgian english :wink
