W123 – Injector rebuild and calibration

My 123 240D has 230,000 on the clock, and I am willing to bet its genuine!

At traffic lights etc, it has been blowing out white smoke, which is normally an indication of poor injector spray pattern. It also gives intermittent diesel knock at part loads and idle. Time to replace the nozzles in the injectors and give them a clean and calibration!

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