So i was changing my crank position sensor on my 2.0TDI in hope it would fix my rough warm start issue that has been progressively getting worse for over a year, the bolt retaining the sensor was very seized and starting to round, i used a hex extraction kit and it removed the bolt with the sensor and snapped part of the crankcase sealing flange with it

Ouch! That's going to be an expensive welding repair because it cannot be done in situ.

14 hours ago, cliffcoggin said:

Ouch! That's going to be an expensive welding repair because it cannot be done in situ.

im going to remove the gearbox and change the seal flange, not what i was expecting to be doing when changing a crank sensor but oh well

Please keep us posted on how you get on

On 5/30/2026 at 5:51 AM, X57E said:

So i was changing my crank position sensor on my 2.0TDI in hope it would fix my rough warm start issue that has been progressively getting worse for over a year, the bolt retaining the sensor was very seized and starting to round, i used a hex extraction kit and it removed the bolt with the sensor and snapped part of the crankcase sealing flange with it

Hi. You said that you had rough warm start issues. What were the symptoms for this? I am also experiencing issues when the engine is warm, and I'm starting the car, and the engine dies right away. This is so random, so I'm not sure what to track next. My battery voltage when the engine is off is 12.4V. I also attached a video to see what issue I'm facing.

Edited 1 hour ago1 hr by Cricku