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D3 - Axles, Brakes, Suspension and Steering Brakes, Springs, shocks, steering racks, steering columns, suspension arms, wheel hubs etc.

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  #11  
Old 5th December 2019, 10:21 AM
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Originally Posted by MikkiJayne View Post
I think Neil might mean the D2. The D3 air strut is different though as its all one assembly.
Sorry wasnt paying attention! must try harder!
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  #12  
Old 5th December 2019, 11:12 AM
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Sorry wasnt paying attention! must try harder!

That's the onset of old age, then
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  #13  
Old 5th December 2019, 01:05 PM
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That's the onset of old age, then
Only the onset? wooo! huge result! .. . . .
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Confidence is the feeling you have before you know better . . . .
Audi A8 D2 3.7 Quattro Sport 1999 FL - Melange
2nd Place Winner - A8-Freunde Annual German Meet 2012 at Edersee
20" x 9" Bentley GTC Wheels with 385mm W12 Front Discs & Bentley Caliper Covers, Front Lowered on Coilovers, Xenons, Combined DRLs and LED Foglights to modified OEM front fog lamp position, Alcantara/Leather, Full Black Alcantara headlining + pillars and blind shelf, Bespoke Flat Bottomed Sports Steering Wheel, Dark Myrtle Wood, Autodim Mirrors, Bose, Blinds, Digital TV, Ski Hatch, Modified rear exhaust section for extra V8 Burble
Audi S8 D2 Final Edition 2002, Avus Silver with Red Leather Interior
Tiptronic with Sport mode button, Sony rear entertainment package, Bose sound system, Audi Navigation Plus, 20 inch Final Edition alloys, Full Cat Back Stainless Milltek exhaust, giving a great V8 burble
Audi A8L D2 4.2 Petrol with LPG - Ebony Black
Audi A8L D4 FL 4.0T Petrol twin turbo - Havana Black
Audi A2 1.6 FSi Sport - Dolphin Grey with Votex body kit and Red Leather Interior
and some other A8's A8L's and Mercs
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  #14  
Old 23rd April 2020, 10:00 AM
NightOwl NightOwl is offline
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I'm borrowing this thread as the tittle is good enough.

I was just wondering about how many times have you replaced the front wheel bearing on your D3? I have had the car for about 5,5 years, and from the sound of it, its time to replace the left front again. This will be the 5th in my ownership...
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  #15  
Old 23rd April 2020, 10:32 AM
MikkiJayne MikkiJayne is offline
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Genuine Audi bearings or OE-quality aftermarket (SKF / FAG) last well over 100K miles in my experience.

If you're going through one a year that suggests they either aren't being fitted correctly, or you're using very low quality parts.
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  #16  
Old 23rd April 2020, 10:49 AM
NightOwl NightOwl is offline
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It's difficult not do the fitting correctly as it's not many ways to do it really. Last time I made sure it was SKF, and the one I ordered now is also SKF. The previous I'm not sure/don't remember the brand.
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Focal and JBL speakers, Helix amps
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Xenon fog lights
All interior LED
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Stage II tune
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  #17  
Old 23rd April 2020, 12:13 PM
MikkiJayne MikkiJayne is offline
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Definitely something going wrong though for an SKF part to only last a year.

Is the mounting surface in the upright still perfectly flat and clean? Dirt under the bearing or a warped upright would twist the bearing and damage it. I always file the surface lightly to check for high spots before refitting the bearing.

Is the hub itself still round and in good condition? Again, burrs or damage here could distort the inner bearing race. It would be prudent to replace the hub with a genuine new unit at this point - I certainly would if I was dealing with a car with this repetitive problem.

Are you torquing the four M12 bolts evenly and to spec? Ideally treat them like cylinder head bolts - tighten evenly and diagonally before torquing up, again so as not to distort the bearing housing.

Are you torquing the hub nut before you put the weight back on it? Spec for most big Audis is 200Nm plus 180 degrees with the final 90 degrees of that being done with the weight on the wheel. If you don't torque it at least the first stage before putting the weight on it, the bearing races can be damaged. That sort of torque is very difficult to achieve - for me its when my 1m breaker bar is bending about 15 degrees!
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  #18  
Old 23rd April 2020, 12:58 PM
NightOwl NightOwl is offline
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I've always been careful to clean out the upright and file down the mounting surface so the new housing will fit well. Never torqued the M12, as I don't know the value and I'm not even sure I will be able to fit my torque wrench in there, but I've always been careful to tighten several times diagonally to pull the new housing evenly into the upright. Will also try to torque the hub bolt the way you describe more carefully. Both the hub and the upright looks fine and undamaged to me on both sides of the car.

Thanks for the info MikkiJayne!
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A8 W12/S8 Brakes front and rear (385mm/335mm)
Focal and JBL speakers, Helix amps
S8 anti-roll bars front and rear
Complete rear LED taillight
Xenon fog lights
All interior LED
S8 rims 9x20"
Stage II tune
S8 Grill
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  #19  
Old 23rd April 2020, 02:03 PM
MikkiJayne MikkiJayne is offline
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Just checked for the D3 - its 80Nm + 90 degrees for the M12s and 200Nm in the air then 180 degrees on the ground for the hub bolt. Grease the sides of the bearing housing before it goes in to the upright.

Sounds like you're doing it pretty carefully already so I'd be inclined to examine or replace the hub itself this time.
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  #20  
Old 3rd May 2020, 01:35 PM
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always buy Genuine Audi wheel bearings
its cheaper in the long run
somebody will always help with an order from TPS
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