rwlucas
Member
For those that are battling oil consumption on the CKRA engine I will share my journey. After more than 2 years of trying to fix this issue on my 2014 Passat tdi I have found the issue. The car was purchased used, with 60,000 on the odometer. It was a buy back that had the software update for diesel gate. At 100,000 K it had a plugged DPF and would re-gen every 100 miles. This went on for a while with no warning lights only reduced mileage. Im pretty sure now that this coked and glazed my rings. Soon after oil consumption got real bad. During the oil consumption era I tried every trick I could from searching the forums. CCV, New turbo, DPF delete etc. Nothing helped. Before the fix it was consuming 1 quart in 300 miles, but ran fine no smoke. The fix for me was a top end clean. It involved removing injectors and soaking pistons in bore with a GM cleaner made for this. I have repeated this twice now and the consumption has decreased considerably.
I have not added oil in the last 2000 miles and am watching dipstick daily. Im pretty confident the excessive heat from re-gens coked my oil control rings to where they couldn't flex in the piston groove. I wish I would have tried this first I could have saved a lot of money not changing out parts that weren't bad. Any way that's my story and very happy.
I have not added oil in the last 2000 miles and am watching dipstick daily. Im pretty confident the excessive heat from re-gens coked my oil control rings to where they couldn't flex in the piston groove. I wish I would have tried this first I could have saved a lot of money not changing out parts that weren't bad. Any way that's my story and very happy.