2000 A6 2.7T driveshaft removal

Louis-Alain Richard laraa at sympatico.ca
Mon Feb 27 09:57:25 PST 2012

According to ETKA, these bolts are "bolts with hexagon socket, self locking,
M8x48 mm".

So, they are very probably "loctited" in there, hence your difficulties.
Usually, they just need a good effort to start but that's it. 
Clean the hexagonal holes, buy a new good high-quality socket (or an
L-shaped allen key), slip a length of tube over the handle of the ratchet,
and crack them with a good push. In fact, they won't "crack", they will
begin to move slightly and the resistance will diminish slowly after a few
turns. It's the same feeling as when you're about to snap a rusted bolt :-).

Heating the head should destroy the bond, but I doubt that sufficient heat
will reach the Loctite that is 48 mm away from the source of the heat.


-----Message d'origine-----

The Allen head bolts on either end of the driveshaft refuse to budge.
Before I get a bigger wrench and strip out the heads, are they installed
with Loctite or something that would require heating?  I was expecting to
see Torx fasteners but they are regular Allen head bolts.

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