Cooling System - Radiator Vent Hose Fitting Replacement

SI B17 02 02
Cooling Systems

September 2002
Service Engineering

SUBJECT
Replacement Fitting for Radiator Vent Hose

MODEL
E38 - 740, 750 with M60, M62 and M73 engines

E39 - 525, 528, 530, 540 with M52, M54 and M62 engines

SITUATION
A radiator vent hose replacement fitting is now available under part number 99 00 0 003 352 and should be used if a vent hose fitting replacement becomes necessary.





The radiator vent hose fitting (1) is located on top of the left side radiator tank (see illustration).

Note:
It is no longer necessary to replace the radiator if a broken vent hose fitting is found.

PROCEDURE

1. If a broken vent hose fitting is found, loosen and move the radiator fan cowl aside to access the vent hose fitting. See repair manual group 17, section 17 11 031 for repair tips.

2. Carefully remove the old fitting from the radiator tank (using two thin bladed screw drivers).&line;Note: Remove the broken fitting piece from the vent hose if necessary.

3. Install the new fitting into the radiator tank and reinstall the vent hose.

4. Check and top up coolant as necessary.

5. Pressure test coolant system and check for leaks. See repair manual group 17, section 17 00 009.





PARTS INFORMATION





WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.