Touareg: 2006 V6
Join Date: May 2011
Second Vehicle: Still looking
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Oil pan drain threads shot!
I read the 2013 thread on this issue, but I have a new(?) wrinkle. I have had the same dealer do all my oil changes on my 2006 V6 3.2 (now 100,000 mi), and it developed an oil leak 2 oil changes ago. New plug...still leaked. Another new plug with a request for tech to check it out more thoroughly...still leaked - worse. Now the wrinkle. With the latest oil change, dealer called saying pan threads were shot but they'd TRY to fix (with a heli-coil). The alternative being over $2200 for a new oil pan, I said go ahead. The heli-coil failed - they say the leak is even worse now! - and my only alternative to the new pan $ was to tow it home with the heli coil still in place where I am now trying home fixes.
I could take it to a local garage, but the owner (in the past, always a fair guy) admits a lack of tools/experience for this job.
I am comfortable with re-threading, but since the dealer already gave the hole one reaming for the failed heli-coil, I'm not too keen on another drilling out of the drain hole, especially in this aluminum pan.
Should I remove the heli-coil before trying any fixes? Do those oversize plugs work, or just use an expanding rubber plug and RTV sealant temporarily while gathering advice for a more permanent fix? Thanks for all advice.