C5 4.2 cooling isues

A6 All/ S6 All
#1

Hi all, Im new here and looking for helpfull info to fix my Audi.
So Im located in Europe, Lithunia.
I got c5 4.2 220kw, and mechanic told that car got cooling issues.
He did test from expansion tank ant told that one of my gaskets is gone.
Sometimes it is hard to start engine it seems that cooling liquid is getting to the one of the cilinders and making starter stuck and not turning engine. Sometimes its ok.
So im asking some advices whats the simplest way to get cilinder heads in my hand, to change the gaskets?:smile:
Is it possible to do it without engine removal? Or is it must?
As one of the chain is located in the end of the engine so some guys which I was speaking told that, without engine removal I will not be able to take off the left cilinder head.
Thanks for advices.

Sorry for my english mistakes.

#2

The C5 is just like the B6 and the timing system is on the back of the motor. I’ve done a few timing jobs with the motor still in the car but it’s a pain. It’s just quicker and better to drop the motor. As for the heads it’s the same. I’d drop the motor it’ll give you much more room to work and get to the bottom of what’s really going on.

I’d probably scope the motor and make sure it was the cylinder head that had an issue and not a crank in the cylinder wall.

#3

Easy enough to do the 4.2 chain driven motors in the car. Exhaust manifold should preferably come off, but other than getting to those bolts the head should come off pretty easy

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#4

LOL… Sure super easy go for it then report back… Oh and next time… take a picture of a chain driven motor when you say it’s easy. Not a belt driven. LOL

But yes Jolio has a belt driven in this picture if the C5 you have is a belt driven not a chain as some small euro late 4.2s were you should be good. But if you are a chain then I’d take it out given just how huge the difference is between a belt driven and chain… So basically belt. Not terrible you can pull in your parts with the motor still in the car… Chain less than the best choice to try and do in the car. I’d pull it if it was a chain not only for the fact that it’s going to be less work overall but the motors are so different you really want to be able to look at both sides of the motor.

#5

Lmao. Idiot me gets so caught up in belt vs chain.

Your right. I weaved when I should’ve ducked… not even going to change it; carry on :sweat_smile: