Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Removing and installing/replacing oil suction pump (S55 Engine) (2019-2022)
Aluminium screws/bolts are permitted with and without color coding (blue).
For reliable identification:
Aluminium screws/bolts are not magnetic.
Jointing torque and angle of rotation must be observed without fail (risk of damage).
Necessary preliminary tasks:
- Removing OIL SUMP .
Release screw (1).
Oil suction pipe must be detached to remove exhaust turbocharger return line for cylinders 4 to 6.
Release screw (1).
The drive shaft (2) is removed with the oil suction pump.
Release screws (1).
Release screw (1) by 180°.
Release screw (1).
Remove oil suction pump rearwards.
Installation:
Position drive linkage (2) in oil pump.
Insert screw (1).
Tightening torque 11 41 3AZ .
Attach oil suction pump to screw (1).
Insert screw (1).
Tightening torque 11 41 3AZ .
Insert bolts (1).
Tightening torque 11 41 5AZ .
Position oil suction pump in oil return pipe of exhaust turbochargers 4 to 6.
Insert screw (1).
Tightening torque 11 41 4AZ .
Assemble engine.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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