Legend, wiring diagram for seat heater and seat ventilation control unit - PE91.30-P-2102-60MAA
Model 164 with CODE (401) Front comfort seats, incl. seat heating and seat ventilation with CODE (443) Steering wheel heater with CODE (872) Electrically heated left and right rear seats Control units N25/7 and N10
| Code | Designation | Coordinates |
|---|---|---|
| A0 | Color code key | 80A |
| F4 | Load compartment fuse and relay box | 18L |
| F4 | Load compartment fuse and relay box | 63L |
| F4f31 | Fuse 31 | 62L |
| F4f68 | Fuse 68 | 17K |
| F33 | Battery compartment prefuse box | 4L |
| F33f88 | Fuse 88 | 4L |
| F33f89 | Fuse 89 | 3L |
| F33f90 | Fuse 90 | 2L |
| M18/9 | Left front seat cushion ventilation motor group | 72L |
| M18/9x1 | Left front seat cushion ventilation motor group connector | 71J |
| M18/10 | Left front seat backrest ventilation motor group | 73L |
| M18/10x1 | Left front seat backrest ventilation motor group connector | 73J |
| M18/11 | Right front seat cushion ventilation motor group | 79L |
| M18/11x1 | Right front seat cushion ventilation motor group connector | 79J |
| M18/12 | Right front seat backrest ventilation motor group | 78A |
| M18/12x1 | Right front seat backrest ventilation motor group connector | 78D |
| N10 | Front SAM control unit | 4A |
| N10 | Front SAM control unit | 12A |
| N25/7 | HS [SIH], seat ventilation and steering wheel heater control unit | 20A |
| N25/7 | HS [SIH], seat ventilation and steering wheel heater control unit | 28A |
| N25/7 | HS [SIH], seat ventilation and steering wheel heater control unit | 36A |
| N25/7 | HS [SIH], seat ventilation and steering wheel heater control unit | 44A |
| N25/7 | HS [SIH], seat ventilation and steering wheel heater control unit | 52A |
| N25/7 | HS [SIH], seat ventilation and steering wheel heater control unit | 60A |
| N25/7 | HS [SIH], seat ventilation and steering wheel heater control unit | 70A |
| N25/7 | HS [SIH], seat ventilation and steering wheel heater control unit | 76A |
| N29/5 | Left front seat ventilation blower regulator | 69L |
| N29/6 | Right front seat ventilation blower regulator | 76L |
| N80 | Steering column module | 65L |
| R13/1 | Left front seat heated cushion | 11L |
| R13/2 | Left front backrest heated cushion | 10L |
| R13/2x1 | Left front backrest heated cushion connector | 9K |
| R13/3 | Right front seat heated cushion | 14L |
| R13/4 | Right front backrest heated cushion | 13L |
| R13/4x1 | Right front backrest heater element connector | 12K |
| R13/5 | Left 2nd row seat heated cushion | 31L |
| R13/5 | Left 2nd row seat heated cushion | 39L |
| R13/5 | Left 2nd row seat heated cushion | 47L |
| R13/5 | Left 2nd row seat heated cushion | 54L |
| R13/6 | Left 2nd row backrest heated cushion | 32L |
| R13/6 | Left 2nd row backrest heated cushion | 41L |
| R13/6 | Left 2nd row backrest heated cushion | 48L |
| R13/6 | Left 2nd row backrest heated cushion | 56L |
| R13/7 | Right 2nd row seat heated cushion | 36L |
| R13/7 | Right 2nd row seat heated cushion | 43L |
| R13/7 | Right 2nd row seat heated cushion | 50L |
| R13/7 | Right 2nd row seat heated cushion | 58L |
| R13/8 | Right 2nd row backrest heated cushion | 37L |
| R13/8 | Right 2nd row backrest heated cushion | 45L |
| R13/8 | Right 2nd row backrest heated cushion | 52L |
| R13/8 | Right 2nd row backrest heated cushion | 59L |
| U12 | Valid for left-hand drive vehicles | 8C |
| U12 | Valid for left-hand drive vehicles | 66A |
| U12 | Valid for left-hand drive vehicles | 74A |
| U13 | Valid for right-hand drive vehicles | 12C |
| U13 | Valid for right-hand drive vehicles | 68A |
| U13 | Valid for right-hand drive vehicles | 76A |
| U154 | Valid for 164.1 | 23H |
| U154 | Valid for 164.1 | 38C |
| U154 | Valid for 164.1 | 46C |
| U154 | Valid for 164.1 | 53C |
| U155 | Valid for 164.8 | 23H |
| U155 | Valid for 164.8 | 28C |
| U744 | Valid for steering wheel heater | 60A |
| W 15/1 | Ground (right footwell) | 4E |
| W 15/1 | Ground (right footwell) | 11E |
| W 15/1 | Ground (right footwell) | 13E |
| W 15/2 | Ground (left footwell) | 9E |
| W 15/2 | Ground (left footwell) | 14E |
| W 15/2 | Ground (left footwell) | 21L |
| W17 | Ground (right rear seat) | 24L |
| W 17/1 | Ground (left rear seat) | 24L |
| W 17/1 | Ground (left rear seat) | 29E |
| W 17/1 | Ground (left rear seat) | 33E |
| W 17/1 | Ground (left rear seat) | 53L |
| W 17/3 | Ground 2 (right rear seat) | 48E |
| W 17/3 | Ground 2 (right rear seat) | 56E |
| X18 | Interior/cockpit connector | 65E |
| X30/4 | Right voltage distributor (CAN) connector | 8L |
| X30/7 | Voltage distributor (CAN) connector | 26L |
| X55/3 | Left front seat contacting strip | 9H |
| X55/3 | Left front seat contacting strip | 67H |
| X55/4 | Right front seat contacting strip | 12H |
| X55/4 | Right front seat contacting strip | 74H |
| X55/5 | Left rear seat adjustment connector block | 28G |
| X55/5 | Left rear seat adjustment connector block | 39G |
| X55/5 | Left rear seat adjustment connector block | 40G |
| X55/5 | Left rear seat adjustment connector block | 46G |
| X55/5 | Left rear seat adjustment connector block | 48G |
| X55/5 | Left rear seat adjustment connector block | 54G |
| X55/5 | Left rear seat adjustment connector block | 55G |
| X55/6 | Right rear seat adjustment connector block | 33G |
| X55/6 | Right rear seat adjustment connector block | 42G |
| X55/6 | Right rear seat adjustment connector block | 44G |
| X55/6 | Right rear seat adjustment connector block | 49G |
| X55/6 | Right rear seat adjustment connector block | 51G |
| X55/6 | Right rear seat adjustment connector block | 57G |
| X55/6 | Right rear seat adjustment connector block | 59G |
| X55/23 | Left bench seat (2nd seat row) 2/3 backrest/cushion separation point | 30H |
| X55/24 | Right bench seat (2nd seat row) 1/3 backrest/cushion separation point | 35H |
| Z53/33 | Left 2nd seat row seat heater terminal connector | 54E |
| Z53/34 | Right IRM 2SR seat heater terminal connector | 58E |
| Z61/12 | Left circuit 31 2nd seat row solder point | 31E |
| Z61/13 | Right circuit 31 2nd seat row solder point | 35E |
| Z204/4 | Circuit 31 right footwell voltage distributor connector | 11C |
| Z204/4 | Circuit 31 right footwell voltage distributor connector | 13C |
| Z204/5 | Voltage distributor connector, left footwell. Circuit 31 (1) | 9C |
| Z204/5 | Voltage distributor connector, left footwell. Circuit 31 (1) | 14C |
| Z204/7 | Voltage distributor connector, left footwell. circuit 31 (2) | 22L |
| Z204/7 | Voltage distributor connector, left footwell. circuit 31 (2) | 39D |
| Z204/7 | Voltage distributor connector, left footwell. circuit 31 (2) | 41D |
| Z204/7 | Voltage distributor connector, left footwell. circuit 31 (2) | 43D |
| Z204/7 | Voltage distributor connector, left footwell. circuit 31 (2) | 44D |