Hello in the round. for my ZKD repair I bought some original Opel parts. Since the FOH sold no spare parts in my vicinity on Saturdays and I did not have any time during the week, I bought them online. The only source I know is this one. The ordered parts had not yet arrived within a week, an e-mail was ignored and no responsible employee was reached. When I asked again by phone yesterday, we I have been informed that the parts will be sent on the same day. The package has actually arrived today! Small sealing rings were simply thrown into the box, which was not even properly glued together and were lost on the way. Of 4 there are only 3 left. Another position was missing, with the note: “4 x 90499400 seal not me The amount for the parts already paid has been refunded to me in cash, but this does not help me to assemble the engine! If I am already called that the package goes out, why is it not communicated to me or asked if I want to order another part instead. If you know a better source for original Opel parts, where I can also order the parts online and which send them to me, I am grateful for the hints. Sorry for the l angen Text MfG Stefan