Quote:
Originally posted by james t kirk
Dot 3 is compatible with Dot 4
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but, this quote "he says the dealer has started buying dot 4 fluid from another company, because it is cheaper" suggests that maybe the dealer was buying a sub-standard fluid (i.e. Fly-By-Night brand "dot 4" brake fluid). In any case, take the car to the dealer where the servicing was done and demand, not ask, that they repair the damage. Alternately, if you do not trust them to do the work properly (and I wouldn't blame you for that, given what has happened) then have it done elsewhere and demand, not ask, for a reimbursement. It's a risk, however, as they may balk at that, in which case you will be out the $$ you paid. However, if they have any regard for their reputation, they should take care of you.
side note: when I was in the biz, we had a customer who had contaminated the brake fluid on his 88 Cutlass Supreme (4 wheel disc system) and we did a complete overhaul of all the hydraulics on his car. Flushed the system several times. And it came back with a rear caliper lockup problem. Flushed it again, twice, and replaced the caliper and pads on that wheel. And it came back, same trouble. And again, and again, and again. We tried everything to get it to stop happening. Finally, the guy was so frustrated with it, and us too somewhat, that he sold the car just to be done with it.
Of course, in his case, the contamination was from power steering fluid, which is much worse than a batch of bad brake fluid, as ps fluid is hygroscopic (absorbs water) which is VERY VERY bad for brake systems.