A/T - E39 THMR1 Harsh 1-2 and 2-3 Gear Upshift

Group 12
Engine Electrical

Bulletin Number
12 03 00

Woodcliff Lake, NJ
November 2000
Service Engineering

This bulletin is also issued in Group 24 (Automatic Transmissions), SI 24 07 00, the contents of which are identical.

SUBJECT:
E39 THMR1 Harsh 1-2 and 2-3 Upshift with Light Throttle Application

MODEL:
E39 with M52TU produced 9/98 to 2/99

SITUATION:
Customer complaint of a hard 1-2/2-3 upshift when accelerating lightly.

CAUSE:
DME/ECM calibration

CORRECTION:
Reprogram the DME/ECM with CD 23.0 or higher.

PROCEDURE:





1. Before programming, check the DME programmed and basic control module numbers. If the following numbers are displayed, do not program the DME. Contact the Technical Hotline for further instructions.

2. An automatic determination can be used to reprogram the DME/ECM in a '99 or '00 MY 528iA/iAT. Select:

-- Programming

-- DME programming

-- Exchange control unit

-- Determine basic control unit

-- "Is faulty control unit installed in car?" ... select "Yes"

-- Enter VIN

-- Program basic control unit

-- Clear adaptation values





The numbers will be displayed after programming with CD23.0

WARRANTY INFORMATION:





Covered under the terms of the BMW New Vehicle Limited Warranty.