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Well, I think its a bit of an overreaction to say its a nightmare of added complexity and unreliability. Its another system that can go wrong - its more that the system forms part of the suspension and so if it does go wrong, there could be 'no drive home with it broken' results - same as any other part of the drivetrain.
I was dissappointed with the car for the 5-6 hours before I finally fixed it, at which point I fell back in love with it again for all its awesomeness. I find it hard to imagine ever going back to a car without air suspension after this (talking family car sized - its not a requirement for me on a hatchback).
There are nearly no factory air suspension vehicles with a good reputation, and interestingly, nearly every factory air ride car in the world seems to use this same WABCO compressor.... to name a few:
> All VAG air ride cars inc Porsche
> All Volvo air ride cars
> All BMW air ride cars
> All merc air ride cars
> All modern Range Rover/Landy with air ride
And I'm sure others that I don't know about.
Heres a pic of the commutator - this is before I'd done any work on it, but you can see ehre the armature windings attached to the commutator bars - in 2 places it had simply cracked.
You'll probably have to fix more of them over time.
Looks like designed-in metal fatigue — the wire angles don't seem right.
No — armature winding isn't exactly an amateur sport... It's just that running and fixing machinery for 75+ years gives you an eye for what doesn't seem right.
Those wires look too rigid for their short length — the flexing from constant heating and cooling is almost guaranteed to eventually crack most of them.
Such a motor will usually run until the commutator fails (might wear out several sets of brushes before that happens.)
Incidentally, the weakest point on your repaired wires will be the solder joint.
This is just for the compressor yeah? Worst case scenario if it continues to be a headache wire in a viair like what every other aftermarket air setup runs. Shouldn't be a big deal.
Did a regular service yesterday. Decided to change the fuel filter.... Holy cow. Never had anything as difficult to bleed as this car, what a nightmare. Finally got it started today after hours of ****ing around with vacuum cleaner, bulb primer, diesel all over the place for hours, lots of battery charging. Won't be doing that job again for a while!
'07 Touareg V6 TDI with air suspension
'98 Mk3 Cabriolet 2.0 8V
'99 A4 Quattro 1.8T
Spent a while the other day modifying my exhaust tip baffles again. This time I went all out. So now I have a spring loaded butterfly valve in each exhaust baffle, and a section of perforated tube after the butterfly so that when its completely closed there is still a path out for the exhaust gasses. my perforated sections are still equal in area to a 2" tube on each outlet.
Its lovely and quiet now on the freeway when you are cruising, I've eliminated the drone completely. Even towing my big trailer it is still quiet on the flat sections.
Of course once you accelerate hard the flaps begin to open and you get more flow and more noise.
I shall have to remove one and take pics for all to see, so you can see how crazy I am.
Very pleased!
'07 Touareg V6 TDI with air suspension
'98 Mk3 Cabriolet 2.0 8V
'99 A4 Quattro 1.8T
What are your thoughts on the TDI all road from WA that's currently on carsales. Bloke is asking 23k for a black 7 seater 2005. Looks tidy, but at that price it's not much more to the C6 TDI.
Sooooooo...
Decided on the weekend to pull a valve cover to check for cam wear.
Once I opened it up, I found one intake valve follower had come astray and so only one intake valve working on that cylinder. I suspect this has been the case as long as I've had the car.
The cams were a little worn... More than you want, perhaps half a mm.
I decided at that point it would be a good idea to renew the cams but thought I could refit the missing follower in the meantime. Aaanyway, I then decided to push down the valve that hasn't been working to ensure it was free to move... And with a bit of effort, it went down, and didn't come back up!
I suspect that the last time the cambelts was done (not by Audi service) the correct locking tools were not used, and some minor valve/piston contact has occurred which has damaged the valve sufficiently to prevent it from runnign freely in the guide and cause the follower to come adrift.
So I've just bought enough parts to do the timing belt, cams, followers, head gasket, all the valves tensioner s water pump, thermostat, the lot!
Gonna be some busy weekends ahead!
Sent from my Nexus 5 using Tapatalk
'07 Touareg V6 TDI with air suspension
'98 Mk3 Cabriolet 2.0 8V
'99 A4 Quattro 1.8T
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