32-piece seal kit repair kit for injectors forBMW E23 E24 E28 E30 E34 E36 325 735 M3 Z3 M30 S50
Over the years, dirt and dust build up in the injection nozzles.
The O-rings harden over time. The main causes are moisture and mechanical stress.
The effects of fats, oils and heat can also intensify this development. It is a slow b