TURNER MOTORSPORT CHIP IDENTIFICATION

 

This list will help you when you order one of our Performance Chips. BMW uses one and sometimes many computers -- usually called an ECU or DME -- in their model ranges. For instance, there are computers for different engine sizes, production dates, and even different computers depending on if your car has a manual or automatic transmission. All ECUs used by BMW begin with 0 261. This is Bosch's designation as a Engine Control Unit. Review the requirements for your car carefully. Turner Motorsport is always ready to help you if you need further assistance (phone: 978-388-7769).

 

E23 735i

            1985-87 735i

·         ECU number (last 3 digits end with 059 or 150). Note: the ECU is located in the passenger's footwell area behind the speaker.

If your ECU is 0-261-200-059, we also need to know the number of pins on the original chip. You will need to open the ECU and count the pins on the removable chip! It is either a 24 or 28-pin chip located in a socket. Unfortunately there is no other way to identify the chip without opening the ECU.

E24 635CSi/M6, E28 535i/is/M5

            1985-89 635CSi, 1985-88 535i/is

·         ECU number (last 3 digits end with 059 or 150)

The ECU can be found in the top of the glove compartment. Undo the plastic panel that makes up the "roof" of your glove box.  You only need to undo the two Phillips screws that fasten this panel or "roof" to the dashboard.  With the forward part of the panel/"roof" undone you should be able to lower it enough to see the ECU and read the ten-digit Bosch part number.  A flashlight can be helpful for reading the Bosch part number.  The number starts with 0-261-200-XXX. If you need to take the computer off it’s bracket, a 10mm socket and driver is required.

·         If your ECU is 0-261-200-059, we need to know the number of pins on the original chip. You will need to open the ECU and count the pins on the removable chip! It is either a 24 or 28-pin chip located in a socket. Unfortunately there is no way to identify the chip without opening the ECU.

·         we also need to know the transmission type (manual or automatic)
[note: not required for cars with 059 ECU]

1987-88 M6

·         no information from your car is necessary

1988 M5

·         no information from your car is necessary

E28 528e

            9/1984-9/1987 528e

·         no information from your car is necessary

·         there is no chip available if your car is a 1988 528 (SuperEta)

E30

            1990-91 318i/is:

·          no information from your car is necessary

1985-87 325e/es

·         no information from your car is necessary

·         there is no chip available if your car is a 1988 325 (SuperEta)

1987-93 325i/is/iC/iX

·         model year

·         transmission type (manual or automatic)

·         ECU number (last 3 digits end with 153, 173, 380, 524, or 525)

The ECU can be found in the top of the glove compartment. Undo the plastic panel that makes up the "roof" of your glove box.  You only need to undo the two Phillips screws that fasten this panel or "roof" to the dashboard.  With the forward part of the panel/"roof" undone you should be able to lower it enough to see the ECU and read the ten-digit Bosch part number.  A flashlight can be helpful for reading the Bosch part number.  The number starts with 0-261-200-XXX. If you need to take the computer off it’s bracket, a 10mm socket and driver is required.

            1987-91 M3

·         we need to know the displacement of your S14 engine (2.3-liters or 2.5-liters)

E31 8-series

            1993-12/94 840i/Ci

·         ECU numbers (2) (last 3 digits end with 404 or 484)

The ECU can be found in a large black plastic enclosure in the engine compartment. There is usually two-three silver boxes in the enclosure (depending on your model and optional equipment). Each silver box has a wiring harness/connector attached to it. It is not necessary at this time to disconnect these wiring harnesses. You may, however, have to remove each silver box until you come to the ECU. The ECU number is 10 digits and begins with 0-261-200. On the "404" ECUs, you also need to verify that the number "1744050" is also printed on a label on the ECU cover.

Click here for chip installation instructions.

             1995 840i/Ci (for cars produced after 12/94)

                                  ·         ECU number (last 3 digits end with 404 or 484)

                                                 The ECU can be found in a large black plastic enclosure in the
                                                 engine compartment. There is usually two-three silver boxes in
                                                 the enclosure (depending on your model and optional
                                                 equipment). Each silver box has a wiring harness/connector
                                                 attached to it. It is not necessary at this time to disconnect
                                                 these wiring harnesses. You may, however, have to remove
                                                 each silver box until you come to the ECU. The ECU number is
                                                 10 digits and begins with 0-261-200.

                                   ·         transmission type (manual or automatic)

                                   ·         in addition, Turner Motorsport needs the original/factory chip
                                           from the ECU. This will have to be removed and sent to us so that
                                          we can copy the code from the EWS-II software. We only need your
                                          chip for 1 day. Both the original and the new Performance Chip
                                          will be returned promptly. Note we only need the chip from your
                                          car's computer - we do not need the computer itself. If you send
                                          us the computer for a chip install an $85 charge will apply for
                                          removal of the stock chip and installation of the Performance Chip.

Click here for chip installation instructions.

            1991-94 850i/Ci

·         ECU number (last 3 digits end with 352 or 998)

The ECU can be found in a large black plastic enclosure in the engine compartment. There are usually two-three silver boxes in the enclosure (depending on your model and optional equipment). Each silver box has a wiring harness/connector attached to it. It is not necessary at this time to disconnect these wiring harnesses. You may, however, have to remove each silver box until you come to the ECU. The ECU number is 10 digits and begins with 0-261-200.

                                 ·         transmission type (manual or automatic)

            1994-95 850CSi

·         no information from your car is necessary

 

E32 7-series, E34 5-series

            1989-92 735i/iL, 1989-92 535i

·         transmission type (manual or automatic)

2/1992-4/1994 740i/iL, 1994-12/94 530i/540i

·         ECU numbers (last 3 digits end with 404 or 484)

The ECU is located in a black compartment on the passenger side of the engine bay (between the strut tower and the firewall). Depending on your car there may be as many as three computers located in this compartment. Each computer has a wiring harness/connector attached to it. It is not necessary at this time to disconnect these wiring harnesses. You may, however, have to remove each computer until you come to the ECU. The ECU number is 10 digits and begins with 0-261-200.  On the "404" ECUs, you also need to verify that the number "1744050" is also printed on a label on the ECU cover.

·         transmission type (manual or automatic)

·         production date of your car

located on the driver’s side door pillar (4 digit MM/YY)  

Click here for chip installation instructions.

            1995 530i/540i (cars produced after 12/94)

·         ECU numbers (last 3 digits end with 404 or 484)
The ECU is located in a black compartment on the passenger side of the engine bay (between the strut tower and the firewall). Depending on your car there may be as many as three computers located in this compartment. Each computer has a wiring harness/connector attached to it. It is not necessary at this time to disconnect these wiring harnesses. You may, however, have to remove each computer until you come to the ECU. The ECU number is 10 digits and begins with 0-261-200.

·         transmission type (manual or automatic)

·         in addition, Turner Motorsport needs the original/factory chip from the ECU. This will have to be removed and sent to us so that we can copy the code from the EWS-II software. We only need your chip for 1 day. Both the original and the new Performance Chip will be returned promptly. Note we only need the chip from your car's computer
- we do not need the computer itself. If you send us the computer for a chip
install an $85 charge will apply for removal of the stock chip and installation
of the Performance Chip.

Click here for chip installation instructions.

1989-90 525i

·         ECU number (last 3 digits end with 173, 380, 524, or 525)

The ECU is located in a black compartment on the passenger side of the engine bay (between the strut tower and the firewall). Depending on your car there may be as many as three computers located in this compartment. Each computer has a wiring harness/connector attached to it. It is not necessary at this time to disconnect these wiring harnesses. You may, however, have to remove each computer until you come to the ECU. The ECU number is 10 digits and begins with 0-261-200.

·         transmission type (manual or automatic)

1991-8/1992 525i/iT

·         ECU number (last 3 digits end with 402, 403, or 405)

The ECU is located in a black compartment on the passenger side of the engine bay (between the strut tower and the firewall). Depending on your car there may be as many as three computers located in this compartment. Each computer has a wiring harness/connector attached to it. It is not necessary at this time to disconnect these wiring harnesses. You may, however, have to remove each computer until you come to the ECU. The ECU number is 10 digits and begins with 0-261-200.

            1993-94 525i/iT

·         no information from your car is required

            1995 525i/iT

·         production date

located on the driver’s side door pillar (4 digit MM/YY)

E36 3-series

            1992-12/1994 318i/is/iC

·         ECU number

The ECU is located just forward of the glove compartment but inside the engine compartment. On the firewall behind the passenger side shock tower in the engine compartment is foam rubber shielding. Remove that and the black plastic cover behind it. Slide out the ECU and copy down the Bosch part number (a ten digit number that starts with 0-261-200). For further assistance refer to this page: http://www.turnermotorsport.com/catalog/e36_ecu_removal.htm  

  • NOTE: on a very small amount of E36 318 computers the stock chip is soldered in place. In this case, TMS does not have a chip and it's not recommended to attempt de-soldering of the stock chip. This is only in about 5% of the 318s in North America but it is suggested that you check your computer for the soldered chip before ordering.

1995 318i/is/iC/Ti

·         ECU number

The ECU is located just forward of the glove compartment but inside the engine compartment. On the firewall behind the passenger side shock tower in the engine compartment is foam rubber shielding. Remove that and the black plastic cover behind it. Slide out the ECU and copy down the Bosch part number (a ten digit number that starts with 0-261-). For further assistance refer to this page: http://www.turnermotorsport.com/catalog/e36_ecu_removal.htm

·         production date

located on the driver’s side door pillar (4 digit MM/YY)

            1992 325i/is

·         ECU number (last 3 digits end with 402, 403, or 405)

The ECU is located just forward of the glove compartment but inside the engine compartment. On the firewall behind the passenger side shock tower in the engine compartment is foam rubber shielding. Remove that and the black plastic cover behind it. Slide out the ECU and copy down the Bosch part number (a ten digit number that starts with 0-261-200). For further assistance refer to this page: http://www.turnermotorsport.com/catalog/e36_ecu_removal.htm

            1993-94 325i/is/iC

·         no information is required from your vehicle

1995 325i/is/iC

·         production date

located on the driver’s side door pillar (4 digit MM/YY)

            1995 M3

·         production date  

                located on the driver's side door pillar