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Approaching 75K Service

Old 02-11-2019, 05:51 PM
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Exclamation Approaching 75K Service

I am approaching 75K on my 2015 A8 L 4.0T and would appreciate any and all advice on what to look for and expect. Having purchased the car used I have an incomplete service history but see from the maintenance booklet that 25K and 35K service was performed at a dealership. I picked up the car at 70K and in terms of maintenance items, I've done rear breaks and an oil service. Additionally I replaced the motor mounts and exhaust (1k/3k fix). Outstanding non-maintenance items include bushings and slow coolant leak. VCDS scan shows no faults. Car runs like a dream.

So after reviewing the maintenance schedule and accounting for the unknown between 35K and 70K, I'm thinking the following are what will need to get done:
  • Brake fluid flush
  • V belt check
  • Tire rotate
  • Clean out plenum
  • Grease sunroof
  • Air filter
  • Change spark plugs
  • Various visual inspections etc.
I'm also considering adding in a transmission fluid service based on other forum discussions. Thanks in advance for the feedback.
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Old 02-11-2019, 09:30 PM
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Yes, agreed on your general conclusions and to-do's list. Some--inlcuding me--do trans. fluid as you are thinking. Most owners probably never touch. Like w/ the 6 speed, 8 speed has good reliability record to date. I will probably do mine bwteen 75-100K eventually, but I am only at 25K now so a long way to go.

If you DIY it, besides VCDS scan the single best diagnostic I have found is actually getting under there physically and pulling the bottom engine cover. I inspect both it and the components and motor above for any signs of any kind of fluid, plus look at CV boots and such. Often down there is where I first find signs of an oil or coolant leak, and then I can trace back to source.
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