02/06/2026
🔧 2016 Volkswagen Golf GTI 🔧
This Golf GTI came into the workshop to investigate an oil leak that had appeared following a recent timing chain replacement carried out elsewhere.
It didn't take long to identify the source of the leak — the crankshaft seal. However, once we removed the timing cover, it became clear why the problem had occurred.
On these EA888 engines, the crankshaft seal is integrated into the timing cover itself, and Volkswagen's repair procedure specifies replacement of the entire cover whenever it is removed. Reusing the old cover almost always leads to leaks. In this case, the issue was made even worse by two dents left in the cover, preventing the seal from doing its job correctly.
A brand-new genuine timing cover was installed, restoring the crankshaft sealing system as intended.
While the vehicle was with us, the customer also requested a steel sump conversion. A good decision, as upon removing the original plastic sump we discovered one of the oil pickup pipe bolts had snapped and was laying loose in the bottom of the sump. Fortunately, no further damage had occurred.
With new genuine oil pickup bolts fitted, a new timing cover and crankshaft seal installed, and the steel sump conversion completed, this GTI is now back together properly and keeping its oil exactly where it belongs. 👌
Another example of why following manufacturer repair procedures matters. The small details make all the difference.
📍 CainePerformance
🔧 Diagnostics | Repairs | Performance Upgrades | ECU Calibration
