Quote:
Originally Posted by SD1too
I don't think they are. One member's became blocked after a sealing compound had been added to the coolant, and I can only remember one other case of a failure. That hardly amounts to a "known weak point".
You can bet your life that if it wasn't necessary MG Rover would not have fitted it.
Simon
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I've read quite a few accounts of KV6 oil cooler failure Simon, on 75/ZTs and on Freelanders. I would definitely call it a weak point.
As for being necessary, it depends what you consider to be a necessity. Cooling the oil in an effort to lengthen service life of 10w-40 semi-synthetic oil by keeping it in viscosity range for longer may have been necessary in the minds of the powertrain designer. With my car never going over 4000 miles between oil changes and always using synthetic oil, I see the oil cooler as being far less necessary.
It appears to me that nothing good can come of leaving it on the car. I'm definitely open to education if I'm wide of the mark though.