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.
17 11... Clean The Radiator Ribs
Only perform this repair work after engine has cooled down.
Necessary preliminary tasks:
- Remove fan cowl . See 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN (N52T) , 17 11 035 REMOVING AND INSTALLING/REPLACING FAN COWL WITH ELECTRIC FAN (N55) 17 11 035 REMOVING AND INSTALLING/RENEWING FAN COWL WITH ELECTRIC FAN (N63) or 17 11 035 REMOVING AND INSTALLING/REPLACING THE FAN COWL WITH ELECTRIC FAN (N63 B40/B44 O 1) .
Release screws (1) on left and right from cover (3).
Tightening torque: 17 10 1AZ .
Release screws (2) behind sealing lip.
Tightening torque: 17 10 1AZ . See RADIATOR, EXPANSION TANK (N63 B40/B44 O 0/1, N74) , RADIATOR, EXPANSION TANK (N52T) or RADIATOR, EXPANSION TANK (N55, N55 HYBRID, N57 D30 U/O/T/S 0/1) .
Lift out cover (3).
Check radiator (1) for dirt contamination.
To clean the radiator use a standard narrow vacuum-cleaner attachment (1) with a length of approx. 600 mm.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.