goodys90

how do you tell the difference between bosch injectors and siemens injectors. i read that bosch injectors are suposed to test between 15-17ohms and siemens injectors are suposed to test between 13.5-14.5ohms. My injectors are grey and have an audi logo on one side and a part # on the other side. tested all injectors all tested at 15.1ohms except for 2 of them which tested at 14.9ohms. i assume they are bosch injectors cause of the numbers they tested at. if they test anything below 15ohms dose it matter that much

Lago Blue

Perhaps the dealer can help you out with some new black ones?

I'm not sure how critical the resistance is. I do know having them seviced at RC Engineering was worthwhile.

Further reading:
https://www.audiworld.com/forums/sho...light=injector