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Home >> BMW >> 2003 >> 525i Sedan (E39) L6-2.5L (M54) >> Repair and Diagnosis >> Heating and Air Conditioning >> Compressor HVAC >> Service and Repair >> Replacing Complete A/C Compressor
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Replacing Complete A/C Compressor




Removing And Installing/Replacing Complete A/C Compressor


CAUTION!
Risk of damage!
Follow instructions for compressor replacement without fail.


CAUTION!
Risk of damage!
Fit charge air hoses without grease and dry.


NOTE:
A/C system is drawn off.
Remove front splash guard.
Remove compressor drive belt.

M57 only:
Remove molded hose between hot-film air-mass flow sensor and turbocharger.

M62 only:
Remove intake filter housing.

S62 only:
Remove right intake filter housing.


M47 only:







Detach rubber gaiter (3) in direction of arrow from air hose (1).
Remove hose (4).
Detach rubber gaiter (3) first from snorkel (2) then from intake neck (5) and remove.

All:







Disconnect plug connection (4) in direction of arrow.
Release screws (1).
Remove lines (2) and (3).

Installation:
Replace sealing rings.


Compressor mounting with 4 screws:







NOTE: Secure A/C compressor against falling out.


Unfasten screws.
Remove A/C compressor towards bottom.

Compressor mounting with 3 screws:







NOTE:
Secure A/C compressor (2) against falling out.
Release screws (1) and remove A/C compressor (2).
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