johnpmc22 1 Posted February 11 New day new issue You can see coolant flowing out at the top left of the radiator , thoughts , new radiator or new flange? Is this a big job on my VR6? Advice please Quote Share this post Link to post Share on other sites
Philly-R6 1 Posted February 14 Hmm - depends where it is actually leaking from. You can un bolt the flange from the radiator and there is a round seal on the pipe that goes into the radiator end tank. It could be this that is leaking? Part# 535 121 687 Round seal (31x3,2) Example: Genuine VW Radiator Top Flange Seal O Ring G60 VR6 Nos - 535121687 : Amazon.co.uk: Automotive Let us know how you get on... Quote Share this post Link to post Share on other sites
johnpmc22 1 Posted February 14 Thanks a mullion … I’ll give it a shot …. Quote Share this post Link to post Share on other sites
fendervg 33 Posted February 19 Seal is worth a shot, but the flanges tend to crack and deform over time, especially with the heat in the engine bay. Also if the bolts are done up too tight it warps the flange faces and won't seal properly - you could try a little bit of sealant to see if it helps. I've usually just replaces the whole elbow and seal. There are also billet versions of the elbow, but pricey. It's a stupid design really where a single bend on a pipe would have worked just as well. Maybe it was to with flushing the radiator, or being able to swap it out without undoing the hose, but I've never understood it. Quote Share this post Link to post Share on other sites
johnpmc22 1 Posted February 22 Thanks guys, i just got to the job this morning and when i took of flange also a piece of the side of the radiator, the female side to the left screw of the flange came off, disaster , so i thinking new radiator , thoughts? Quote Share this post Link to post Share on other sites
Philly-R6 1 Posted February 24 Yep - That isn't going to glue back together! Probably the cause of your leak, too. Autodoc do one 041700N AKS DASIS Engine radiator 630 x 310 x 34 mm, Manual Transmission, Automatic Transmission, Mechanically jointed cooling fins for VW Corrado 53i | AUTODOC price and review . Have a proper look for a good one. Or upgrade to a stainless one - they may even do the bend so you won't need the flange? I've no experience of these. Quote Share this post Link to post Share on other sites
Philly-R6 1 Posted February 24 (edited) They do a Mahle one for £52! CR 407 000S MAHLE ORIGINAL 376714641 Engine radiator for vehicles with air conditioning, 673 x 305 x 34 mm, Automatic Transmission, Manual Transmission, Mechanically jointed cooling fins | AUTODOC price and review Word of warning on Aftermarket alloy Radiators - Engine Bay - The Corrado Forum Edited February 24 by Philly-R6 Quote Share this post Link to post Share on other sites
johnpmc22 1 Posted February 27 Thanks Philly-R6, the part number is 535 121 251E so i am thinking of going for this one https://www.auto-doc.ie/aks-dasis/1719649 , anyone think i shouldn't? Quote Share this post Link to post Share on other sites
bahnstorm 0 Posted February 27 I had one from autodoc,was mk3 golf vr6 so double check... Quote Share this post Link to post Share on other sites
Cressa 45 Posted February 27 On 2/27/2025 at 10:53 AM, johnpmc22 said: Thanks Philly-R6, the part number is 535 121 251E so i am thinking of going for this one https://www.auto-doc.ie/aks-dasis/1719649 , anyone think i shouldn't? Looks fine, just check the measurements are good Quote Share this post Link to post Share on other sites
