Cleaning unit injectors (engine codes BMN, BKP, BMA, BUZ and BMR) — VW
Cleaning unit injectors (engine codes BMN, BKP, BMA, BUZ and BMR) on VW: 11 steps, engines BKP, BMA, BMN, BMR.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Touran I (1T, 2003–2015), VW Golf V / Jetta (1K, 2003–2009), VW Passat B6 (3C, 2005–2010); platform code 5M1
📋 Procedure
- Attach drain tap (arrow) from ultrasonic cleanerVAS 6418 to right-hand side of housing.
- Fill cleaning unit with 1870 ml tap water and 330 ml cleaner TickopurD 600 300 A2.
- Set mounting plate for unit injectorsVAS 6418/3 onto cleaning unit.
- ⚠ Before starting ultrasonic cleanerVAS 6418 it is essential that the safety information is observed in the operating instructions.The ideal fluid level is reached when the cleaning agent is approx. 1-10 mm above the base of the support plate. The ultrasonic cleanerVAS 6418 could become damaged if the fluid level is too low. — Insert the unit injectors in the guides of the support plate.
- Switch on cleaner by pressing on/off button (C).
- Turn rotary temperature switch (B) until lamp indicator is at 70° C warm-up temperature
- Set rotary switch for operating period (A) to "“∞”"(arrow) (continuous operation).
- Press button ►(D) for longer than 2 seconds to switch the unit on. [Note: Temperature-controlled cleaning is now activated. During the warm-up period, ultrasonic waves are activated to mix the cleaning fluid. Once the preselected temperature is reached, the ultrasonic waves are switched to continuous operation. Cleaning time must be at least 120 minutes and cleaning only starts at a temperature of at least 70 °C.]
- After 120 min. of cleaning, switch the unit off by pressing button ►(D).
- Take unit injectors out of mounting plate and dry at ambient air for max. 1 hour.
- Reinstall unit injectors .
Other VW procedures
- Emptying fuel tank if it is less than 3/4 full · 1 torque figures
- Removing and installing camshaft oil seal – VW Golf VI · 2 torque figures
- Removing and installing anti-theft engine control unit – VW · 1 torque figures
- Checking delivery pressure of fuel pump – VW
- Removing and installing exhaust roller rocker finger – VW AZV · 2 torque figures
- Removing engine · 41 torque figures
- Removing and installing camshaft – VW Golf Cabriolet · 47 torque figures
- Adjusting valve timing – VW Passat B5 · 83 torque figures
- Removing and installing camshafts – VW Passat B6 · 39 torque figures
- Removing and installing coolant pump · 53 torque figures
Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.