2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) Technical Service Bulletin # 640310 Date: 100501
A/C - Minimal Or No Cooling Output From A/C
SI B 64 03 10
Heating and Air Conditioning
May 2010
Technical Service
SUBJECT
Air Conditioning System Pressure Line Damaged
MODEL
E82, E88 (1 Series)
E90, E92, E93 (3 Series)
Vehicles equipped with the N54 engine and produced up to 2/27/2010
SITUATION
No or minimal cooling output from the air conditioning system
CAUSE
The clamp on the charged air pipe rubs against the air conditioning pressure line on the compressorcondenser when the engine is running, causing
damage to the pressure line.
PROCEDURE
2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) 317
Run diagnostics on the vehicle using the latest version of ISTA, and work through all corresponding test modules.
Check for any damage around the compressor-condenser pressure line and the charged air pipe marked by the circle. See figure 1 in the attachment.
If damage is found, evacuate the refrigerant in accordance with the REP 64 52..."Instructions for opening and replacing parts in the refrigerant circuit
for drawing off, evacuating and filling the air conditioning system".
Remove and install the rear left charge air duct. Refer to REP 11 61 368..."Instructions for removing and installing/replacing rear left charge air
duct".
Replace the compressor-condenser pressure line with refrigerant line P/N 64 50 4 239 966.
Refill the system with the specified amount of refrigerant, following the REP 64 52 instructions.
If the clamp on the charged air pipe is not positioned as shown in figure 2, it must be turned to match the orientation shown in figure 2. Also, verify
the gap shown in figure 2 between the radiator hose connection clamp and the screw head of the charged air pipe clamp; it must be at least 60 mm.
PARTS INFORMATION
WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle Limited Warranty.
ATTACHMENTS
2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) 318
2010 BMW 335Cic Convertible (E93) L6-3.0L Turbo (N54) 319
view PDF attachment B640310Attachment.
