Pin assignment at multi-pin connectors on instrument cluster
32-pin multi-pin connector, blue
1 - Washer fluid low
2 - Coolant level low
3 - Fuel gauge sender
4 - Coolant temperature
5 - Control group 2 Navigation system
6 - Control group 3 Navigation system
7 - Control group x Telematics
8 - Menu switch
9 - Vacant
10 - Bonnet switch
11 - Fuel gauge sender 2
12 - Menu switch (Out A)
13 - Vacant
14 - Vacant
15 - Vacant
16 - FDR/TCS (= ESP)
17 - Convenience CAN High
18 - Convenience CAN Low
19 - Infotainment CAN Low
20 - Infotainment CAN High
21 - Ambient temp. (input)
22 - S contact
23 - Oil level / oil temperature
24 - Self-levelling suspension
25 - Menu switch (enter)
26 - Vacant
27 - Vacant
28 - Menu switch (Out B)
29 - Vacant
30 - Transponder 2
31 - Transponder 1
32 - Terminal 31 (sensor)
A90-0159
32-pin multi-pin connector, green
1 - Terminal 58d
2 - Terminal 30
3 - Terminal 15
4 - Vacant
5 - Speedometer (input)
6 - Speedometer (output 2)
7 - Airbag (inverted)
8 - Turn signal (right-side)
9 - Brake fluid low
10 - Turn signal (left-side)
11 - Turn signal (trailer)
12 - CAN drive Low
13 - CAN drive High
14 - Terminal 61/charge warning
15 - Vacant
16 - Oil pressure 2
17 - Terminal 58s
18 - Terminal 31 load
19 - Terminal 31 load
20 - Vacant
21 - Speedometer (output 1)
22 - ABS warning
23 - K wire
24 - CAN drive (display)
25 - Tank flap switch
26 - CAN diagnosis Low
27 - CAN diagnosis (display)
28 - CAN diagnosis High
29 - HRC (headlight range control)
30 - Belt buckle
31 - External buzzer
32 - Brake pad wear
A90-0160
I don't know is it against forum rules, but if you ever need, you can find for any other model on this page