bosch ve injection pump replacement bolt

Audi Nut Joined: Jan 17, 2013 Posts: 77 Location: scotland

Hi all, just a quick note. Found a direct replacement for the bosch triangle? bolt that causes all the problems removing it. try Mtec unit 2 tripark tamworth b79 7tb............their item no 370868591870 you will get 10 of these but £2.60 post free. They are stainless steel and have an Allen head so won't burr out they are on ebay if you want

UltraUser Joined: Mar 18, 2005 Posts: 1570 Location: Gwent

I don't know what this bolt does, but would advise caution as A2 stainless is significantly weaker than 8.8 grade steel fasteners. Sometimes VAG use 10.9 or even 12.9 grade fasteners so it may not be up to the job?
A4 stainless is a bit better in that it is close to 8.8 grade in strength. Stainless does have different coefficient of friction and 'springiness' You may find if you torque to the figs in the manual that the bolt is not as secure as it should be?

Audi Nut Joined: Jan 17, 2013 Posts: 77 Location: scotland

Hi, this bolt is the one that holds down the edc controller on the pump. They do not require to be TOO tight as you are compressing the rubber seals. All I am saying is this bolt with the Bosch security head is a bugger to remove and I now use the new bolt to do the job. I have now done all four of my Audi's with complete success.

UltraUser Joined: Mar 18, 2005 Posts: 1570 Location: Gwent

Fair enough, I guess they are OK used there.