Richie-Van-GTi 71 2 Cars Posted May 19, 2008 anyone familiar with the 306 heater matrix? Are the pipes that link from the bulkhead down to the matrix part of the matrix or are they replacable? Ive just done an engine swap for someone in a 306 xsi with a rattley bottom end. On inspection the oil contained water and further investigation shows a crack in one of these pipes, I suspect this caused a head gasket failure due to low coolant which has watered the oil and killed the bottom end. The guy does 1k a week in this car so it wouldnt of took long to develop Ive bypassed the matrix for now but just looking at ways it can be fixed so he has heaters without breaking the bank. Share this post Link to post Share on other sites
welshpug 1,657 Posted May 19, 2008 they're part of the matrix, which is a Dash out job to replace, thankfully I have never had to undertake one myself though I know that there are members that have. good place to ask is the 306gti6.com forum, same heater arrangement across the range, just different pipes from the engine to the bulkhead. Share this post Link to post Share on other sites
ablister 31 Posted May 19, 2008 they are part of the matrix itself. It's not 'that' bad to do, just quite alot to do so you'll have dash bits everywhere! Share this post Link to post Share on other sites
