Audi Q7 Gear Slip After Transfer Fluid Service

Last month I dealt with similar symptoms on my 2017 Audi Q5 3.0 TDI. The rough shifting and slipping during acceleration were clear indicators of transfer case problems. The initial transfer fluid change masked the real issue temporarily. After inspection, we found significant mechanical wear on the transfer case gears and bearing surfaces. This was causing metal particles to contaminate the transfer case oil, leading to further damage. The main signs that indicated serious transfer case problems: Grinding noise during gear changes, Delayed power delivery to wheels, Transfer case oil leakage around seals, Vibration at specific speeds This required a complete transfer case rebuild. The job was extensive, involving replacement of worn gears, bearings, and seals. Not addressing these symptoms quickly can lead to complete transfer case failure and potential damage to other drivetrain components. Suggest asking your mechanic to: 1. Check for metal particles in transfer fluid 2. Perform transfer case pressure test 3. Inspect input shaft bearings 4. Check all mounting points and seals This is a serious repair that requires specialized knowledge. Best to address it immediately before more extensive damage occurs.

Thanks for sharing your experience. My Q7 had exact same symptoms last winter. Got it fixed at the dealer after they found metal particles in the gear oil during inspection. Really curious how much you ended up paying for the rebuild? Also wondering if youve had any other issues pop up since the repair? Mine has been running smooth but planning to get another oil analysis done just to be safe.

Since getting my Q5 fixed last month, the transfer case oil wear issue has been completely resolved. The gear grinding noise disappeared after they replaced the defective gears in the transfer case. Total repair cost came to 330 Euro, which included new seals and gear oil change. The car runs perfectly now with no other problems showing up. A thorough inspection showed the oil leakage was contained to just the transfer case, so no related damage occurred. Getting regular oil analysis is smart, I plan to do the same at my next service interval to ensure everything stays in good shape. The key was catching the issue early before the gear wear could spread to other components. The new gear oil stays clean now, and the transmission shifts are back to being smooth and precise.

Thanks for all the helpful feedback. I finally got my Q7 sorted last week. Took it to a specialist transmission shop rather than the dealer. They found serious mechanical wear in the transfer case, causing all that gear grinding I was hearing. The mechanic showed me the metal shavings in the transfer fluid, way more than normal. They did a complete rebuild, replacing worn gears and bearings. Cost me 2800 Euro total but worth every cent to have it done right this time. Running perfectly now with no oil leakage or unusual noises. The gear shifts are smooth again, especially during acceleration. Getting the transfer fluid analyzed next month just to confirm everything is holding up well. Lesson learned about addressing these symptoms early before they cause bigger problems.