Am I correct in saying this is the diff oil cooler? Or is it to do with the HICAS? Mine looks fine, but I think one of the pipes is leaking and would just like to know while Im fixing it...

HICAS shares fluid with power steering system and as such only has a cooler at the front of the car for Euro/UK

spec cars. On Euro/UK spec cars the differential oil cooler is located near the differential itself at the rear of the

car (JSpec cars don't have PS or differential oil coolers).

Edited March 29, 20169 yr by AndrewG

Am I correct in saying this is the diff oil cooler? Or is it to do with the HICAS? Mine looks fine, but I think one of the pipes is leaking and would just like to know while Im fixing it...

 

Yes sounds like the diff cooler, one word of caution, the cooler is alloy and the outlet pipes will have started to fracture, in most cases just trying to remove the rubber pipe will cause the outlet to snap off flush to the cooler.

 

This is no real biggy to be honest as the cooler is fed via a small motor situated just a little further forward than the cooler under a plastic guard, this motor is set to operate at a temperature determined by the sensor in the back of the diff. Now the temp setting for this is so high that I have never seen a road zed with oil in the cooler when removed, in fact they are mostly completely dry and clean.

 

The pipes on the other hand do leak as they sit lower and unless you absolutely sure you want to keep it ( Why ?) then link it out across the two outlets on the diff and remove the cooler and the motor, as mentioned by Andrew only UK zeds have them not the imports and from my experience diff failure is higher on UK cars than imports for which I cannot explain fully but just know from the what was my workshop jobs.

 

 

Jeff