Hello, my window lifter on the front right is on strike. Last year, when it got cold, he was still zucking when it got cold, nothing was going on. I thought it might be related to the temperature. Last weekend, I dismantled the door panel, cleaned everything and treated it with contact spry. Unfortunately, without success. Now it’s obvious that the engine itself is defective. But I didn’t dare to expand it, because I couldn’t get close to it and I was afraid that I couldn’t get the Mechnik together any more. If I loosen the 2 Torx screws on the sheet myself, can I remove the engine without further ado, or does everything come after it?What do I have to keep in mind? How do I get to clean and grease the sliding rails best? It’s very close to the door. Thank you very much for the answers!