This is a 2011 GTI with DSG, and 60000mi, running on 0W40 Mobile 1.
SYMPTHOMES:
Car starts perfectly cold and doesn't smoke
When temperature drops below -10F, car heavily smokes at idle and when hot.
HOW IT STARTED:
I have been doing lapping during 2 summers but never had any turbo issues.
In 5 days extreme weather -20F my turbo is gone
First symptoms started on Monday January 1st evening when I left for a dinner.
The car started smoking at the second stop then smoked 7mi especially when I stopped at idle.
After the dinner I drove home 7mi without problem.
Then I spend the week going to work and ski-ing, drove about 180mi without any smoke.
Thursday my oil level was at half level (about 3.4qt)
Then this Friday the nightmare has started. After 10mi I stopped at a red light and my car started heavily smoking.
At the second light the engine stopped because of the excessive oil in the engine. I left the car and went to work.
After work car started without issue, drove about 7mi then it started heavily smoking and I had a lot of difficulty to drive home.
DIAGNOSES:
- Turbo has been disassembled
- I had 2qt oil left in the engine, within 20mi my turbo blow out 1.4qt oil
- Intake is dry no oil
- Leak down on all 4 cylinders is 0% which quit exceptional
- No coolant is missing
- Exhaust valves are clean
- Intercooler had about 0.3qt oil inside
- Turbo had oil in every single outlet
- My exhaust is full on oil
- Boost side of turbo is "clean" but have been leaking oil from behind the propeller
- Exhaust side of the turbo is plenty of "cooked" oil
- Turbo propeller is turning “square”
THE QUESTION:
What caused the turbo to fail ? Obviously it didn’t overheat but missed some lubrication.
Should I have used 5W30 for this temperature?
SYMPTHOMES:
Car starts perfectly cold and doesn't smoke
When temperature drops below -10F, car heavily smokes at idle and when hot.
HOW IT STARTED:
I have been doing lapping during 2 summers but never had any turbo issues.
In 5 days extreme weather -20F my turbo is gone
First symptoms started on Monday January 1st evening when I left for a dinner.
The car started smoking at the second stop then smoked 7mi especially when I stopped at idle.
After the dinner I drove home 7mi without problem.
Then I spend the week going to work and ski-ing, drove about 180mi without any smoke.
Thursday my oil level was at half level (about 3.4qt)
Then this Friday the nightmare has started. After 10mi I stopped at a red light and my car started heavily smoking.
At the second light the engine stopped because of the excessive oil in the engine. I left the car and went to work.
After work car started without issue, drove about 7mi then it started heavily smoking and I had a lot of difficulty to drive home.
DIAGNOSES:
- Turbo has been disassembled
- I had 2qt oil left in the engine, within 20mi my turbo blow out 1.4qt oil
- Intake is dry no oil
- Leak down on all 4 cylinders is 0% which quit exceptional
- No coolant is missing
- Exhaust valves are clean
- Intercooler had about 0.3qt oil inside
- Turbo had oil in every single outlet
- My exhaust is full on oil
- Boost side of turbo is "clean" but have been leaking oil from behind the propeller
- Exhaust side of the turbo is plenty of "cooked" oil
- Turbo propeller is turning “square”
THE QUESTION:
What caused the turbo to fail ? Obviously it didn’t overheat but missed some lubrication.
Should I have used 5W30 for this temperature?