Fuses and relay Mercedes Ml164

Mercedes ML W164 - the second generation of Mercedes-Benz M-class SUVs, which were produced in 2005, 2006, 2007, 2008, 2009, 2010, 2011 and 2012 with gasoline and diesel engines ML 280 CDI, ML 300, ML 320, ML 350 , ML 420, ML 450, ML 500, ML 550, ML 620, ML 63 AMG. During this time, the model has been redesigned. This information will also be useful to owners of the Mercedes GL X164 GL 320, GL 350, GL 420, GL 450 and GL 500 4MATIC, as these models have similar wiring diagrams. In this article, we will show the locations of electronic control units, a description of the fuses and relays of the Mercedes 164 with block diagrams, photo examples of their execution and location. Select the fuse for the cigarette lighter.

The location of the blocks and the purpose of the elements in them may differ from those presented and depend on the year of manufacture and the level of electrical equipment. Check the assignment with your diagrams, which are located near the fuse and relay boxes.

Circuit example

Location

Block layout

Description

one	ABS electronic control unit
two	Air conditioning / heating control unit - in the air conditioning / heating control panel
3	Heater/A/C blower motor resistor - near blower motor
4	Sunlight Sensor (A/C)/Rain Sensor (Wipers) - Upper Center Windshield
5	Antenna Amplifier - Tailgate
6	SRS impact sensor, driver's side
7	Passenger Side SRS Crash Sensor
eight	Side Impact Sensor, Driver's Side - Upper B-Pillar
nine	Side impact sensor, passenger side - upper B-pillar
ten	alarm siren
11	Audio Output Amplifier - Under Seat
12	Additional heater control unit - behind the wheel arch
thirteen	Auxiliary heater control unit - under the left rear seat
14	Battery - under the seat
fifteen	Remote control unit (cruise control)
sixteen	CAN data bus, gateway control unit
17	Diagnostic connector (DLC)
Eighteen	Differential Lock Control Unit - Hollow Barrels
nineteen	Driver's door ECU - on the door
twenty	Passenger door electric control unit in the door
21	ECM, V8 - Front footwell
22	Electronic engine control unit, V6 - top of the engine
23	Electronic engine control unit, Diesel - behind the wheel arch
24	Cooling fan motor control module - on cooling fan motor
25	Fuel pump control unit, left - under the rear seat
26	Fuel pump control unit, right - under the rear seat
27	Fuse / relay box, engine compartment 1
28	Fuse / relay box, engine compartment 2
29	Fuse/Relay Box, Instrument Panel
30	Fuse/Relay Box, Luggage Compartment - Behind Right Rear Trim
31	Under seat fuse/relay box
32	Left headlight control unit (xenon headlights)
33	Right headlight control unit (xenon headlights)
3. 4	Headlight range control unit - under the seat
35	Sound signal, lion.
36	Beep, right.
37	Ignition lock control unit
38	Instrument cluster control unit
39	Keyless entry control unit - right side of trunk
40	Multifunction control unit 1 - footwell - functions: central locking, power windows, fog lights, headlights, high beams, heated seats, heated washer jets, headlight washers, horn, turn signals, forward position, windshield wipers/washers
41	Multifunction Control Module 2" Cargo Compartment Fuse/Relay Box - Functions: Anti-Theft System, Central Locking (Rear), Rear Heater, Rear Wiper/Washer, Headlights (Rear), Turn Signals (Rear), Power Seat Relay (Passenger) ), brake lights, tailgate control unit, trailer electrical connector
42	Multifunction control box 3 - on multifunction switch (overhead console) - functions: Anti-theft system, garage door remote control, interior lighting, sunroof, rain sensor (wipers)
43	Navigation system control unit
44	Parking system control unit - under the seat
Four five	Rear Seat Tilt Control Module - Under Left Rear Seat
46	Rear view camera control unit - under the seat
47	Driver's seat electronic control unit - under the seat
48	Passenger seat electronic control unit - under the seat
49	Seat heating control unit - under right rear seat
50	Seat occupant detection control unit - under the seat
51	Steering column electrical control unit - under the steering wheel
52	Electric sunroof control
53	SRS electronic control unit
54	Suspension control unit
55	Power tailgate - for hollow trunks
56	Telephone control unit - under the left rear seat
57	Transfer box control unit
58	Electronic transmission control unit - in the transmission
59	Electronic transmission control unit (DSG transmission) - in the transmission
60	Tire pressure monitoring control unit - in the fuse and relay box in the luggage compartment
61	Voice Control Unit - Under Left Rear Seat
62	Lateral motion sensor

Fuse and relay boxes

scheme

designation

• F3 - Fuse box on the dashboard (passenger side)
• F4 - fuse and relay box in the trunk
• F32 - power fuse block in the engine compartment
• F33 - Fuse box in the battery niche
• F37 - AdBlue fuse block (for engine 642.820 from 1.7.09)
• F58 - Fuse and relay box in the engine compartment

Blocks under the hood

Fuse and relay box

This block is located on the right side under the hood.

scheme

Goal

100	Wiper motor 30A
101	15A Motor and A/C suction fan with built-in regulator
Engines 156: Circuit terminal electrical cable terminals 87 M3e
113 Engines: Reversing regeneration valve
Engines 156, 272, 273: Reversing regeneration valve
Engines 272, 273:
Terminals of wires terminals of electrical circuits 87M1e
Suction fan control unit
629 Engines:
CDI system control unit
Cable terminal electrical terminals 30 circuits
Suction fan control unit
164 195 (hybrid ML 450):
ME control unit
Plug connection engine/engine compartment
642 engines except 642.820:
CDI system control unit
O2 sensor before catalytic converter
Suction fan control unit
Engines 642.820: O2 sensor before catalytic converter
102	15A Engines 642.820 up to 31.7.10: Gearbox oil cooler circulation pump
156 Engines: Engine oil cooler circulation pump
10A 164,195 (hybrid ML 450):
Transmission oil cooler circulation pump
Coolant pump, low temperature circuit
103	Electrical wire circuit terminals 25A 87M1e
CDI system control unit
Until 2008; engines 113, 272, 273: ME control unit
20A 164.195 (ML 450 Hybrid): ME control unit
Engines 272, 273: ME control unit
104	15A Motors 156, 272, 273: Circuit terminal electrical cable terminals 87 M2e
629 motors: Terminal 87 Wiring terminal circuits
Motors 642.820: Circuit terminal electrical cable terminals 87 D2
Engines 642, except 642.820: CDI control unit
164 195 (hybrid ML 450):
Plug-in wiring harness for passenger compartment and engine
Engine compartment fuse and relay box
Engines 113: ME control unit
105	15A Engines 156, 272, 273:
ME control unit
Electrical cable terminal circuit terminal 87 M1i
629 engines: CDI control unit
Engines 642.820:
CDI system control unit
Fuel pump relay
642 engines except 642.820:
CDI system control unit
Fuel pump relay (since 2009)
Starter (until 2008)
164.195 (ML 450 Hybrid): Plug connection for passenger compartment and engine wiring harness
Motors 113: Shielded circuit terminals 15
106	Not used
107	40A Engines 156, 272 and 273: Electric air pump
164.195 (ML 450 Hybrid): engine/engine compartment connector
108	Compressor unit AIRmatic 40A
109	Switchboard ESP 25A
164.195 (ML 450 Hybrid): Regenerative brake control unit
110	10A alarm siren
111	30A Automatic transmission servo module for DIRECT SELECT system
112	7,5A Left headlight
Right headlight
113	15A left horn
right horn
114	5A Before 2008: not used
From 2009: SAM control unit, front
629 engines: CDI control unit
115	Shield ESP 5A
164.195 (ML 450 Hybrid): Regenerative brake control unit
116	7,5 A Electrical control module VGS
164.195 (ML 450 Hybrid): Fully integrated gearbox control unit, hybrid
117	Control unit Distronic 7.5A
118	5A Engines 156, 272, 273: ME control unit
Engines 629, 642: CDI control unit
119	5A Engines 642.820: CDI control unit
120	10A Engines 156, 272, 273:
ME control unit
Relay circuit terminal 87, motor
Engines 113: ME control unit
629 engines: CDI control unit
Engines 629, 642: Terminal 87 relay circuit, engine
121	Heater STN 20A
164.195 (ML 450 Hybrid): Fuse and relay box 2, engine compartment
122	25A Engines 156, 272, 273, 629, 642: Starting
Engines 113, 272, 273: ME control unit
123	20A 642 Engines: fuel filter fogging sensor with heating element
Engines 629, 642 from 1.9.08: Fuel filter fogging sensor with heating element
124	7.5A Model 164.120/122/822/825 from 1.6.09; 164.121/124/125/824: electro-hydraulic power steering
164 195 (hybrid ML 450):
Electro-hydraulic power steering
Electric air conditioner compressor control unit
125	7.5A 164.195 (ML 450 Hybrid): Power electronics control unit
Relay
AN	Wiper Mode Relay 1/2
Б	Wiper On/Off Relay
С	642 engines: additional circulation pump for transmission oil cooling
Engines 156: Water circulation pump relay
Д	Relay circuit terminal 87, motor
Me	Air pump relay
Ф	Horn relay
GRAM	Air suspension compressor relay
TIME	Relay terminal 15
Я	Starter relay

Power fuses

Located behind the fuse and relay box, behind the counter.

scheme

transcribed

• 4 - Not used
• 5 - 40A 164.195 (ML 450 Hybrid): Regenerative braking system control unit
• 6 - 40A ESP control unit, 80A - 164.195 (ML 450 Hybrid): Electro-hydraulic power steering
• 7 - 100A Suction electric fan for engine and air conditioner with built-in regulator
• 8 - 150 A Before 2008: Fuse and relay box in the engine compartment, 100 A From 2009: Fuse and relay box in the engine room

Blocks in the salon

Block in panel

It is located on the right side of the dashboard, behind a protective cover.

scheme

Description

ten	Electronic Amplifier Fan Controller 10A
11	Instrument panel 5A
12	15A Control panel KLA (Deluxe automatic climate control system)
Control panel KLA (luxury automatic climate control system)
thirteen	5A Steering column electronic module
Top unit control panel
14	Control unit 7,5A EZS
fifteen	5A electronic compass
multimedia interface control unit
sixteen	Not used
17	Not used
Eighteen	Not used

Block behind the battery

Under the passenger seat, on the right side, next to the battery, there is another fuse box.

scheme

designation

78	100A Before 30.06.09/XNUMX/XNUMX: Additional PTC heater
150A Before 2008, from 1.7.09: PTC auxiliary heater
79	60A SAM control unit, rear
80	60A SAM control unit, rear
81	40A Engines 642.820: Relay for AdBlue supply
150A From 1.7.09: Fuse and relay box in the engine compartment (except engines 642.820)
164.195 (ML 450 Hybrid): Vacuum pump relay (+)
Before 2008: not used
82	100 A fuse and relay box in trunk
83	5A Passenger weight control unit (USA)
84	10A SRS control unit
85	25A From 2009: DC/AC converter control unit (115V socket)
30A Before 2008: Automatic transmission servo module for "DIRECT SELECT" system
86	Fuse box on the front panel 30A
87	30A Transfer box control unit
15A 164.195 (ML 450 Hybrid): Engine compartment fuse and relay box 2
88	70A SAM control unit, front
89	70A SAM control unit, front
90	70A SAM control unit, front
91	40A From 2009: Air conditioning recirculation unit
Before 2008: fan controller

Blocks in the trunk

Fuse and relay box

There is a box with fuses and relays in the trunk on the right side behind the interior trim.

scheme

Goal

twenty	5A Before 2008: roof antenna module
Since 2009: radio antenna noise filter
Since 2009: Microphone array control unit (Japan)
21	Control unit 5A HBF
22	5A PTS control unit (parking assistance)
Receiver unit for radio remote control of the auxiliary heater STH
23	DVD player 10A
Rear Audio Control Unit
Wiring diagrams for mobile phones (Japan)
GSM network compensator 1800
Bluetooth module
UHI control unit (universal mobile phone interface)
24	40A Right front seat belt recessive pretensioner
25	15A Control and display unit COMAND
26	25A Right front door control unit
27	30A Seat adjustment control unit with front passenger memory function
28	30A Driver's seat adjustment control unit with
Memory
29	40A Front left recessive seat belt pretensioner
30	40A From 2009: Rear bench seat control unit
156 Engines:
Left fuel pump control unit
Right fuel pump control unit
164.195 (ML 450 Hybrid): terminal 30 electrical cable termination, fuel pump control unit
31	10A Control unit for heating, seat ventilation and steering wheel heating
32	Control unit AIRMATIC 15A
33	Keyless-Go system control unit 25A
3. 4	25A Left front door control unit
35	Speaker amplifier 30A
Since 2009: subwoofer amplifier
36	10A Emergency call system control unit
37	Rear view camera power module 5A (Japan)
Rear view camera control unit (Japan)
38	10A digital TV tuner
Before 2008: Audio Interface Control Unit (Japan)
Since 2009: Combined TV tuner (analogue/digital) (Japan)
164.195 (ML 450 Hybrid): high voltage battery module
39	7.5A RDK control unit (tire pressure monitoring system)
Before 2008: SDAR control unit (USA)
From 2009: HD tuner control unit
Since 2009: Digital Audio Broadcasting Control Unit
Since 2009: detachable connection of the external part of the navigation system (South Korea)
40	40A Before 2008: Rear door lock control module
30A From 2009: Tailgate lock control unit
41	25A roof control panel
42	25A Before 2008: SHD engine
From 2009: Roof control panel
43	20A Since 2009; Engines 272, 273: Fuel pump control unit
Up to 31.05.2006/XNUMX/XNUMX: rear door wiper motor
As of 01.06.2006/XNUMX/XNUMX: Not used
44	20A Until 31.05.2006/2/XNUMX: Plug, XNUMXnd seat row, left
Up to 31.05.2006/2/XNUMX: Power outlet XNUMXnd seat row, right
As of 01.06.2006/XNUMX/XNUMX: Not used
2009 onwards: Front Inner Plug (USA)
From 2009: 115 V socket
Four five	20A socket in the trunk
Before 2008: passenger compartment front fork
From 2009: socket in the second row on the right
46	15A Illuminated cigarette lighter, front
47	10A 164.195 (ML 450 Hybrid) — High voltage battery coolant pump
From 2009: door lighting
48	5A From 2009: Rear differential lock control unit
Since 2009; Engines 642.820: AdBlue relay
From 1.7.09; for 164.195, 164.1 with engine 272 and 164.8 with engine 642 or 273: pyrotechnic igniter
49	30A rear window heating
50	10A Before 31.05.2006/XNUMX/XNUMX: Rear door wiper motor
15A From 01.06.2006/XNUMX/XNUMX: Rear door wiper motor
51	5A carbon cartridge check valve
52	5A Before 31.05.09/XNUMX/XNUMX: Reversible front left seat belt pretensioner
Before 31.05.09/XNUMX/XNUMX: Right front reversible seat belt pretensioner
From 2009: Rear differential lock control unit
53	5A AIRMATIC control unit
156 Engines:
Left fuel pump control unit
Right fuel pump control unit
Engines 272, 273: Fuel pump control unit
From 2009: Transfer case control unit
54	5A Headlight range control unit (from 01.06.2006/XNUMX/XNUMX)
SAM control unit, front
55	7.5A Instrument cluster
Outdoor lighting with rotary switch
56	5A Before 31.05.2006/XNUMX/XNUMX: diagnostic socket
Engines 642.820: AdBlue control unit
164.195 (ML 450 Hybrid): Fuel pump control unit
57	20A Before 2008: fuel pump with fuel level sensor
Fuel pump (except engine 156)
58	Diagnostic connector 7,5 A
Central interface control unit
59	7.5AA from 2009: NECK-PRO headrest solenoid coil on the back of the driver's seat
From 2009: NECK-PRO solenoid coil for headrest in backrest, front right
60	5A Glove box lighting with microswitch
Engine compartment fuse and relay box
Rear SAM control unit
Mobile phone electrical connector circuit
Detachable power supply unit VICS+ETC (Japan)
Air pump for multicontour seat (since 2009)
Detachable connection of the external part of the navigation system (South Korea)
Blind spot monitoring, internal electrical outlet/rear bumper (since 1.8.10)
Emergency call system control unit (USA)
61	10A until 2008:
Passive safety system control unit
Seat contact strip, front right
7.5A Since 2009:
Passive safety system control unit
Seat contact strip, front right
62	30A Passenger seat adjustment switch
63	30A Driver's lumbar support control unit
Front passenger's lumbar adjuster control unit
Driver seat adjustment switch
64	Not used
sixty five	Not used
66	30A 2009 onwards: Air pump for multicontour seat
67	Air conditioner rear fan motor 25A
68	25A Before 2008: 2nd row seat cushion heater, left
Before 2008: 2nd row right seat cushion heating element
From 2009: Control unit for heating, seat ventilation and heated steering wheel
69	30A From 2009: Rear differential lock control unit
70	Drawbar connector AHV 20A, 13-pin (since 2009)
Drawbar connector AHV, 7-pin
Drawbar connector AHV 15A, 13-pin (until 2008)
71	30A Plug connection Elektric-Brake-Control
72	Drawbar connector AHV 15 A, 13 pins
Relay
К	Up to 31.05.2006/15/XNUMX: Terminal XNUMXR Relay socket, off-delay
From 01.06.2006/15/XNUMX: Seat adjustment terminal XNUMXR
2009 onwards: Plug terminal circuit relay 15R (off delay) (F4kK) (electric seat adjustment)
Л	30 times relay terminal
METER	Heated rear window relay
North	Relay terminal 15 circuit
OR	Fuel pump relay
П	Rear Wiper Relay
Р	Relay terminal 15R
Yes	Reserve 1 (changeover relay) (front output power supply)
Т	From 01.06.2006/30/2: Take terminal XNUMX, XNUMXnd row of seats and trunk
From 2009: Reserve 2 (NC relay) (power for outlets in center and rear)
You	From 01.06.2006/30/XNUMX: Relay terminal XNUMX circuit (trailer)
В	From 01.06.2006/2/XNUMX: Reserve relay XNUMX

Fuse number 46 at 15A is responsible for the operation of the cigarette lighter.

AdBlue system unit

Next to the AdBlue system is another fuse box responsible for its operation.

scheme

designation

• A - AdBlue 15A control unit
• B - AdBlue 20A control unit
• C - AdBlue 7.5A control unit
• D - not used