poloblue

Swapping ESP Bosch 8.2i pump to Bosch ESP 9.0i

Posted in: Brakes

To properly coding the rear disc brakes in my 6R, it was necessary to replace the ESP Bosch 8.0i pump with a newer version of the Bosch 9.0i.

It was necessary to change few wires in the ESP/ABS pump connector:

T38/
ESP8.2i
May 2009
ESP8.2i 
Nov 2009
ESP8.2i
7L6 May 2012
ESP9.0i PQ
Nov 2012
ESP9.i MQB
ESC
1
SA5 +30
SA5 +30
SA5 +12V
SA5 +12V
+30
+12V +30
2
3
4
E492 T6/4
E492 T6/4
E492 T6/4
G45 T2/1
G45 T2/1
E256 T6/5
5
E256 T6/4
E256 T6/4
E256 T6/4
6
G45 T2/1
G45 T2/1
G45 T2/1
G294 T3/1
G294 T3/1
+15
7
SC4 +30
SC4 +30
J570 T9/1 +12V
8
T4/1 F 
J570 T9/4 +12V
J570 T9/4 +12V
G47 T2/1
G47 T2/1
E616 T6/5
9
10
Can PT low
11
Can PT high
12
E492 T6/6 to +15
E492 T6/6
J500 T5/1
13
GND
GND
GND
GND
GND
GND 6.0mm2
14
Can PT low
Can PT low
E616 T6/2
15
Can PT low
Can low
Can PT low
16
J570 T9/8 +12V
J570 T9/8 +12V
G45 T2/2
G34 T2/2
17
G44 T2/1
G44 T2/1
G294 T3/1 (TSI)
18
G45 T2/2
G45 T2/2
G45 T2/2
G47 T2/2
G47 T2/2
19
G44 T2/1
G44 T2/1
G44 T2/1
G46 T2/2
G46 T2/2
20
G46 T2/2
G46 T2/2
G46 T2/2
E492 T6/5
21
G294 T3/3 (TSI)
22
G47 T1/2
G47 T1/2
G47 T1/2
E256 T6/5 to +15
E256 T6/5 
23
G294 T3/2 (TSI)
24
25
SC1 +30
SC1 +30
SC1 +12V
SC1 +12V
+30
+12V +30
26
Can PT high
Can PT high
Can PT high
Can PT high
Can PT high
G45 T2/2
27
G45 T2/1
28
SB9 +15
+15
+15
J187 (diff lock)
29
G44 T2/2
G44 T2/2
G46 T2/1
30
J623 D73 F brake
J623 D73 F brake
J623 D73 F brake
J623 D73 F brake
J623 D73 F brake
G46 T2/2
31
G46 T2/2
G44 T2/2
G44 T2/2
G46 T2/1
G46 T2/1
32
G294 T3/3
G294 T3/3
J623 D73 F brake
33
G46 T2/1
G46 T2/1
G44 T2/2
34
G47 T2/2
G47 T2/2
G44 T2/1
35
SB9 +15
SB9 +15
SB9 +12V +15
36
G47 T2/1
37
G294 T3/2
G294 T3/2
G47 T2/2
38
GND
GND
GND
GND
GND
  • G44 RR speed sensor
  • G45 FR speed sensor
  • G46 RL speed sensor
  • G47 FL speed sensor
  • E256 ESP button
  • E618 Hill descend button
  • J500 Power steering control unit
  • J570 Voltage stabiliser 2 on relay carrier
  • E492 TPMS reset button
  • F Brake light switch
  • G294 Brake servo pressure sensor 

Information about individual bytes (coding):
docs.google.com/document/…iLeSzm_HtU8eWQSGeUkg/view

Here I showed a few photos from the process of undressing the ESP/ABS pump connector

Big thanks for iichel!

I had some problems writing the new coding in the ABS pump.

There are many descriptions of individual bytes on the Internet:

Finally, with the help of Michel, after many unsuccessful attempts, the pump coding was finally saved.

My new coding (Polo 6R MY2012 1.4 CGGB + ESP Bosch 9.0i):
21DD2885212400C984141472845900400905