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2006 C2 75K miles. I've had a very very slow coolant leak for about a year that has persisted despite replacing the tank.
Today I was changing my oil and noted what looks like coolant crud on a black pipe running alongside the filter (towards the passenger side). It seems to be coming from somewhere up above the pipe.
According to my indy the leak was coming from the oil cooler. There was some corrosion so just replacing the rubber seals wasn't going to be enough. FWIW he said he hadn't seen this before, and he works only on Porsche.
PS - this was the first time I had jacked up the car to do an oil change (got new stands and was practicing). Otherwise I don't think I would have noticed it. I had been dealing with a VERY slow coolant leak in the setting of a relatively new tank.
PS - this was the first time I had jacked up the car to do an oil change (got new stands and was practicing). Otherwise I don't think I would have noticed it. I had been dealing with a VERY slow coolant leak in the setting of a relatively new tank.
Not to put too fine a point on it but there is a downside to trying to do a brief/skinny oil/filter service.
I always backed my cars up on ramps -- the incline of the car doesn't appear to affect the amount of oil drained -- to get plenty of room under the rear of the car to not only change the oil and filter but to with a bright flashlight give the underside of the car a thorough inspection.
More than once when I have had one of my cars in for an oil/filter change the tech reports spotting a problem. In one case it was a leaking transmission seal. (New tranny courtesy of the CPO warranty.)
Another time the tech spotted leaking front diff axle flange seals.
Another time the tech reported a suspected leak from my Boxster's camshaft covers which we let "mature" and it turned out to be from the plug tubes and their o-rings (which were just shot).
Once or twice the tech has spotted something in the tires.
An oil/filter service is not the time to do a wham bam thank you Ma'am oil/filter service but an opportunity to give the car a good check out from underneath looking for any possible issues.
