Finally finished to retrofit ESP/VDC on my Alfa 147 (actually last week but only now had some time to write about it)
Parts necessary :
1. ESP Pump // 35 pounds on ebay.co.uk
This will replace the old ABS/ASR Pump
The pump was from an Alfa 147 2.0 TS (there are more compatibles)
The code on it :
0 265 225 033
BOSCH 189099 0 265 950 020
Alfa part number : 71714736
2. YAW Sensor // 5.5 Euro from ebay.de
It's mounted in front of the Airbag Ecu, you have to remove the carpet on the floor, you just have to pull it out it comes precut from factory
It's is from an Alfa 166 (probably the facelift version)
Recommend the later parts because they are the never version.
Cod Bosch : 0265005225 or 0265005277
Cod Alfa : 46557523 or 46831064
3. Steering Angle Sensor // 5 pounds from ebay.co.uk
This comes with the complete steering stalk. So you have to replace the old steering stalk with this
Alfa part number : 07353655320
supplier 47143 prog 01264
date 17/07/04 fiat 07353655320
4. Clock spring for Airbag + Steering wheel radio controls // ~ 20 pounds (local dismantler)
Mounted on the steering stalk
There are 2 kinds of clock strings, one for ESP version (black center ring) and one for non ESP version (white center ring)
5. Cable harness // ~ 25 pounds from local dismantler
The best way is to replace the whole cable harness on the car but couldn't find any JTD cable harnesses so took one from 147 2.0 TS.
I took only the cables I needed from the cable harness and made a new cable harness to add to my old one so that I would have all the wires I needed for the ESP to work.
The total was about 170 pounds (in which are the shipping costs) a lot of electric tape , Cola, Coffee and cigarettes
Total time of work was about 3 weekends.
08 - Acceleration/yaw sensor -> D1 (pin 10) //father
09 - Side acceleration sensor test -> D1 (pin 13) //father
10 - Acceleration/yaw sensor reference -> D1 (pin 14) //father
20 - N.C. stop switch -> D97A (pin 08)
21 - Acceleration/yaw sensor earth -> D97C (pin 01)
39 - Side yaw/acceleration sensor power supply -> D97C (pin 05)
41 - Yaw sensor signal -> D1 (pin 11) //father
(This 7 wires you have to get from the engine bay inside the car)
K72 Is the connector for the ESP pressure sensor on the Pump
25 - Brake fluid pressure sensor earth -> K72 (pin 01)
26 - Brake fluid sensor signal -> K72 (pin 02)
42 - Brake fluid pressure sensor positive -> K72 (pin 03)
(This 3 wires go to the pressure sensor K72)
D1 (Is a mother - father connector already on the car, in it also goes the receiver from the immobilizers)
D1 09 //father -> D97C (pin 04)
D1 09 //mother -> K74 (pin 03)
D1 10 //mother -> K74 (pin 05)
D1 11 //mother -> K74 (pin 04)
D1 12 //father -> D97C (pin 02)
D1 12 //mother -> K74 (pin 06)
D1 13 //mother -> K74 (pin 02)
D1 14 //mother -> K74 (pin 01)
D97C Is a shortcoupling brige.
This isn't on the car and you have to take it from the cable harness.
It connects the following pins (1,2 and 3)(4,5 and 6)(7,8 and 9) in short.
D97C 03 -> K58 (pin 06)
D97C 06 -> K58 (pin 05)
K58 Is the steering angel connector
K58 03 -> M1A (pin 33)(Body computer, front blue connector)
K58 01 -> M1A (pin 32)(This 2 wires are for the can communication between the sensor and body computer)
Surprises after installation.
1. Error from the pressure sensor and brake switch (to wires where reversed, wasn't careful when I mounted them, took me 1,5 day to find the reason for this problem )
2. The horn wasn't working , it's power supply it through the clock spring not like the old one through the steering stalk.
Needed to pull a wire from H5A (pin 1, it's the connector from the steering stalk behind the wiper stalk) to D47 (pin 1, it's the clock spring connector) and from H5A (pin 7) to D47 (pin 6)
Here I had some problems because it appears that in eLearn the Horn electric schematic is wrong pin 1 and 6 had to be reversed else the radio controls on the steering wheel light up only when you horn.
For more details you can search in eLearn, it has a lot of schematics.
You also need Fiatecuscan to do a proxy alignment so that the mileage indicator isn't blinking because of the new node in CAN network (steering angle sensor)
And also you have to bleed that brakes. (Don't forget)
Comparison between ABS and ESP pump, the later has the pressure sensor.
Steering stalk without steering angle sensor.
Steering stalk with steering angle sensor.
Location where I pulled the wires Interior
Wires pulled to the ABS Connector
For the full retrofit you will have to replace the speedo so that you have the ESP icon instead of the ASR (It's not necessary the electronic part behind is the same only the icon differs)
You also have remove two pieces of plastic from the connector of the ESP pump so that the ABS connector can slide in (they have different aligning/sliding pins and this have to be removed so that you can enter the connector in the ESP pump)
If you have more questions ask me.