A/C - Minimal Or No Cooling Output From A/C

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.