0CK gearbox issue (A6 C7, 2015), Stronic [Archive]

karlo.bozic

07-25-2023, 01:32 AM

Hi guys. I hope someone can help me with some information. I own A6 C7 with 0CK gearbox. ECU and TCU has not any fault via VCDS. Car has 228000km. And I have some problem (or it will become a problem). Sometimes, after first start, when I want to go, I put gearbox in D and I release the brake, the car will start suddenly. Then it "realizes" that it was obviously too sudden, disengages the drive and starts softly and slowly. Furthermore, there is a slightly rougher change of gears between 1 and 2, and 2 and 3.. Both up and down. And not always. But they are not jerks. I just feel the change of gears. After gear change, I feel the car accelerate as if you let go of the clutch pedal on a manual transmission.
I changed oil (ATF + MTF) + 2 pressure filter + 1 suction filter at 200 000km. At 218 000km, I changed all solenoids on mechatronic unit preventively, ATF + filters, after that, I updated of TCU with last version of OEM map, and did calibration of gearbox. Everything done correctly, but this "problem" is still her
Does anyone know what clutches pressure value are normal for that gearbox? Can I check the condition of clutches via VCDS?
Or does anyone have any advice?

Alabama

07-30-2023, 07:32 AM

Anybody?

Not my area, but I don't recall reading on AZ that VCDS may be used to directly check the condition of clutches. However, folk have written that one may use VCDS to perform a "clutch adaptation" that may be beneficial. For example, read recent AZ thread "DSG Clutch pack finally worn or is this bigger?" Is that what you mean by "calibration of gearbox"?