Before installing injector in engines that have been run
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2016 BMW 760Li, 2015 BMW 760Li, 2014 BMW 760Li, 2013 BMW 760Li, and 2012 BMW 760Li. However, it is still accessible from the selected car via links, so may be relevant.
- Check injector bore for dirt.
Clean only dirty injector bores.
IMPORTANT: - do not damage injector! - Clean injector bore: To do so, preferably slide injector without uncoupling element (2) but with new PTFE sealing ring (1) in and out of injector bores several times.
The PTFE sealing ring must then be replaced.
- Clean contact surfaces of uncoupling elements (2) in cylinder head.
- Replace decoupling element (2).
IMPORTANT:
Injection quantity compensation!
An injector quantity compensation must be carried out if an injector is replaced or changed on the cylinder side.
Injector quantity compensation is carried out with the aid of a so-called adjustment value.
The adjustment value is printed in two blocks of three digits on the injector.
The adjustment value must be read off before installation!
Enter the adjustment value according to the installation location (cylinder) of the injector.
If injector quantity compensation is not carried out, the engine may run roughly or fail to start.
Description of injector quantity compensation at end of instructions.