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318ti A/C Service Bulletin

If you have a '95 318ti (produced up to 11/95) and find that your A/C
system is making the "groaring" noise, the following may help:

BMW SERVICE INFORMATION
Group 64		Bulletin Number		Woodcliff Lake, NJ
Heating and		64 04 96		May 196
Air Conditioning				Product Engineering

SUBJECT:	Noise from A/C Expansion Valve on 318ti

MODEL:		318ti (E36)

Complaint:	1.  Screeching noise from expansion valve during A/C
		operation on 318ti produced up to 11/95.
		2.  Moaning sound from expansion valve when compressor
		cycles on mostly at low ambient temperatures on 318ti
		produced as of 11/95 or with replaced expansion valve.

Situation:	The 318ti was introduced with an A/C expansion valve that
		was not friction-dampened (#64 11 8 361 917).  This valve
		may cause a screeching noise during A/C operation.

		As of 11/95 a friction-dampened expansion valve (#64 11
		372 436) went into production.  This valve fixed the
		problem of screeching noise during A/C operation.

		However, with that expansion valve there may be complaints
		of moaning noise for a few seconds, immediately after the
		engagement of the A/C compressor clutch.

		This valve has now been further improved.  It will fix
		both complaints.  In case of these complaints, do not
		change the A/C compressor.  All compressors that have been
		replaced because of these complaints have been analyzed
		and no problems were found.

		Note: The new modified valve has the same part number as
		the old one (64 11 8 372 436).  For identification it is
		bearing a green paint dot.

Correction:	In case of a customer complaint, install the new modified
		expansion valve and do not change the compressor.

		For details on replacing the A/C expansion valve, refer
		to the appropriate repair manual section 64-51.

Warranty	Parts and labor are reimbursable under the terms of the
Information:	BMW new car limited warranty of 4 years / 50,000 miles.

		Defect Code:		64 51 12 39 00

		Parts Allowance:	64 11 8 372 436

		Labor Operation:	64 51 520

		Labor Allowance:	13 FRU


  David Tay <tsr@domain.elided>     BMW CCA #130574, '95 E36/5 318ti
    Tay Systems Research                     CompuServe: 74213,2471
       3554 Chain Bridge Rd., #100          Tel. 703/760-9022
         Fairfax, VA 22030-2709, USA     Fax. 703/893-1154