Campaign - TCU Inspection/Replacement: Overview

SI B84 01 04
Phone, Navigation Systems

August 2005
Technical Service

This Service Information bulletin supersedes S.I. B84 01 04 dated February 2004.

PERFORM THE PROCEDURE OUTLINED IN THIS SERVICE INFORMATION ON ALL AFFECTED VEHICLES THE NEXT TIME THEY ARE IN THE SHOP FOR MAINTENANCE OR REPAIRS AND PRIOR TO RETAIL DELIVERY.

[NEW] designates changes to this revision

SUBJECT
Service Action: Check and Replace TCU

MODEL
E46 (3 Series), E85 (Z4), E53 (X5), E83 (X3)

SITUATION

Low ambient temperatures (below 32°F) may cause the TCU (Telematics Control Unit) to go into reset mode. The result is that calls to BMW Assist or "SOS" calls will not be completed.

Once in reset mode, the TCU will remain in this condition even with the ignition turned off This could result in a discharged battery.

This Service Action will check the TCU and replace it if necessary. Copies of the customer notification letter and Q&A are shown.

To minimize customer's inconvenience caused by this service action, pick-up (and deliver after repair) the affected vehicle from customer's home or provide appropriate alternative transportation.

Customers will be impressed when you return their cars cleaned inside and out and with a full tank of gas. Reimbursement information for the vehicle fueling and valet costs may be found in the Warranty portion of this bulletin.

AFFECTED VEHICLES

This Service Action involves E46 (3 Series), E85 (Z4), E53 (X5) and E83 (X3) vehicles which were produced from 8/2003 to 11/2003.

In order to determine if a specific vehicle is affected by this Service Action, it will be necessary to utilize the "Service Menu" of the DCS (Dealer Communication System). Based on the response of the system, either proceed with the corrective action or take no further action.

g?U:

The Chassis Number Ranges shown are only for informational purposes and are not to be considered as the only deciding factor.

CAUSE

Telematics Control Unit (TCU).

PARTS INFORMATION

Please order by placing the VIN in the comment/text field of your order. The VIN will be checked against the VIN ranges provided.

You may order this part either on a VOR or a stock order. Only orders for single units accompanied by a valid VIN will be processed. Multiple quantity and non-VIN specific orders will be cancelled.

If you need a TCU to replace a unit in a vehicle that is outside the VIN ranges provided, place the order in the same manner and contact the PCG @ (800) 272-0202 ASAP. This will prevent your order from being cancelled due to using a VIN that does not appear on the master list.

LABEL INSTRUCTIONS

This Service Action has been assigned code number 390. After the vehicle has been checked, and corrected if necessary, obtain a label (SD 92-245) and:

a. emboss your BMW dealer warranty number in the middle of the label (1);

b. punch out code number 390 (2) printed on the label and,





c. affix the label to the B pillar as shown.

If the vehicle already has a label from a previous Service Action/Recall Campaign, affix the new label next to the old one. Do not affix one label on top of another one because a number from an underlying label could appear in the punched-out hole of the new label.

WARRANTY INFORMATION











[NEW] Reimbursement for this Service Action will be via normal claim utilizing the information shown.





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