Climate Control System Not Functioning (LI83.00-P-045032)

Publication date: 2009-04-28
Reference number: LI83.00-P-045032
Supersedes refnos: 83.00/83, 83.00/83A, 83.00/83B

CLIMATE CONTROL SYSTEM NOT FUNCTIONING

TECHNICAL SERVICE BULLETIN

Reference Number(s): LI83.00-P-045032 Version 2 (P-B-83.00/83B, March 25, 2009), Date of Issue: April 28, 2009

Mercedes-Benz:	Model 199.376, VIN Range 000018 to 000666
Design Group:	83.00 General
Reason For Change:	Damage Code Revised

Superceded Bulletin(s): P-B-83.00/83A, Date of Issue: August 21, 2008

COMPLAINT

Climate control system not functioning, fuse 72 blown in relay module K40/5 and possibly an amber engine warning lamp illuminated.

CAUSE

Chafed climate system harness.

REMEDY

Disconnect the battery ground cable as per WIS document AR54.10-P-0003SLR.
Remove the cover on the center console as per WIS document AR68.20-P-2350SLR.
Remove radio as per WIS document AR82.60-P-7502SLR.
Refer to (Fig 1) and inspect the outer insulation covering of the flat LIN bus wiring for any witness marks from contact with the center console carbon fiber support. Please note that (Fig 1) shows the climate housing out of the vehicle and viewed from the top. The drawn lines show the routing of the harness.
The circles shown in Fig 2 are the areas where the harness may be making contact.
If the climate system fuse 72 has blown in relay module K40/5 and/or the insulation covering has been chafed through to the wire, the harness must be replaced with A230 820 02 15. If there are only superficial marks on the insulation, cover the area of the harness with fabric tape.
Felt tape should be applied to both edges of the carbon fiber support and the harness wires tucked away so that they do not make contact. Clean the surfaces of the carbon fiber support with degreasing spray A001 986 71 71 10 and apply felt tape A001 983 23 10 as shown in Fig 3. Wrap felt around edge of structure.
Reassemble vehicle in reverse order.
Reconnect battery.
Using SDS read fault code memory and erase all DTCs.

NOTE: The following allowable labor operations should be used when submitting a warranty claim for this repair. This information has been generated on March 25, 2009. Please refer to Netstar -> Star TekInfo -> Star Time for the most current labor time allowance.

ATTACHMENTS

Fig 1: Routing Of Harness. Climate Unit Shown Removed From Vehicle

Fig 2: Points Of Possible Contact Shown By Circles (Viewed From Above)

Fig 3: Location Of Felt. Wrap Felt Over Edges Of Support (Viewed From Above)

SYMPTOMS

Body / Air conditioning / Insufficient heat output / Heater /

Body / Air conditioning / Air conditioning / Insufficient cooling output /

Air conditioning display error / Body / Air conditioning / Air conditioning /

PARTS

Part number	Designation	Qty	Note	Non- EPC
A230 820 02 15	Harness	1		X
A001 983 23 10	Felt strip (order by the meter)	1	Sufficient for 2 cars, Submit as Local Purchase - FTA00217, Qty 1, handling is included	X
A001 986 71 71 10	Degreasing spray (Loctite 7063)	1	Sufficient for 25 cars, Submit as Local Purchase - CNR00032, Qty 1, handling is included	X

WORK UNITS

Op. no.	Operation text	Time	Damage code	Note
54-7989	GROUND CABLE - ELEC. SYSTEM BATTERY, D & C (WHEN SEPARATING ELEC. CONNECTORS)	0.0 hrs. *	83318 73	Model Indicator: W1 * Separate time punch required. Ensure that punches are labeled as NON time.
54-9204	ELECTRICAL LINE FOR..(SPECIFY) , REPAIR	0.0 hrs. *		Model Indicator: W1 * Separate time punch required. Ensure that punches are labeled as NON time.

WIS-REFERENCES

Document number	Title	Allocation
AR54.10-P-0003SLR	Disconnect/connect battery ground line	Remedy
AR68.20-P-2350SLR	Remove/install cover on center console	Remedy
AR82.60-P-7502SLR	Remove/install radio	Remedy