| AdvisorGuy |
12-03-2008 12:54 PM |
Items that will be issue:
Upper control arm bushings split every 40-50K. It's a good but complex set up. There are 2 upper & 2 lower control arms on each side. The PLUS is that the front wheels stay nearly straight throughout their travel - just look at one when they're on a lift. Barely any deviation. The bad is bushings wear quickly.
Regular synthetic oil changes are a MUST esp if it's a 1.8T - sludge issues with that motor in the A4 and Passats. The 1.8T was originally for the Golf/Jetta/Beetle/TT in transverse applications. When they decided to fit it longitudinally in the Passat/A4, the oil pan was reshaped to clear the subframe, reducing oil capacity. The "fix" was a change to a larger oil filter that added .5 qt to the 3.8qt capacity and requiring synthetic oil only. The resulting class-action law suit gives an 8 year / unlimited mileage warranty for sludge issues so long as maintenance is documented. The "fix" ranges from a "sludge kit" - replacing restricted oil lines to the turbo, oil pump pick up,etc and flushing the engine all the way to a new engine & turbo. We remove the valve cover first whenever one comes in with the STOP !! OIL PRESSURE !! warning on and inspect the cam bearings. If they're scored and you have maintenance documentation, you get a new engine & turbo. 1yr/10.000 miles intervals with dino oil, together with the low oil capacity all conspired to cause this. I had an A4 in last month with 69,000 miles that got a new engine/turbo, all the way to my friend's 02 Passat getting the same a few months ago at 110,000 miles. Also, expect frequent Check Engine lights for vacuum leaks with the 1.8T with the myriad if vacuum lines/tubes/breathers etc. Simple fix is to replace them all in one shot and be done.
The 2.8ltr V6 is a better choice in that body if you don't plan on any engine/software mods and reliability wise. Timing belt replacements on both are now 6 yrs / 75,000 miles. Another Class Action settlement pulled the 105K belt replacement on the 1.8 to a more realistic interval like the 2.8. The only real 2.8 issue is a little oil consumption between oil changes.
Ignition coils are common. If one fails, change all 4 (1.8T). They're cheap & easy enough.
Sunroof drains clog easily. Simple fix is to snip the crimped-flat ends to the tubes in the front door jambs and behind the rear wheels. Check pollen filter housing seal in the right front cowl. Prone to leaks into the cabin. Simple fix is to remove the housing and reseal it. Also make sure the cowl drain under the battery is clear of debris. If you live or park where it's wooded, check it 2-3 times per year. I've seen some with 5-6 inches of water backed up in the cowl and get sucked into the brake booster.
If you drive moderately hard or in traffic, rear pads & rotors generally wear before fronts. They do not have wear indicators. The fronts do.
4MOTION = QUATTRO if he looks at one. Same Torsen set up as the A4/A6.
Flush the coolant & brake fluids every 2 years.
Water pump is timing belt-driven so replace everything when doing the timing belt with either engine. The bumper cover has to come off and the nose put into "service position".
Make sure recalls for seat heaters and fuel tank shield were performed...
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