Mercedes w201 (190) fuse and relay

Mercedes 190 (W201) was produced in 1983, 1984, 1985, 1986, 1987, 1989, 1990, 1991, 1992, 1993 with both petrol and diesel engines. In this material, we will show a description of the fuses and relays Mercedes 190 w201 with box diagrams, photo examples of performance and locations. Select the fuse responsible for the cigarette lighter.

Mercedes 190

The purpose of the fuses and relays may differ from the one shown and depends on the year of manufacture and the level of equipment of your car. Check the purpose with your diagrams on the box cover.

An example of a circuit from the box cover



Under the hood of the Mercedes 190 w201, 2 boxes with fuses and relays can be located.




  1. Main fuse and relay box
  2. Additional relay box

Fuse and relay box

Photo example



18/16/25A Heater fan, relay for switching on an additional air conditioning fan (winding)
28A Carburetor (intake manifold heating relay, coil)
Heater fan, auxiliary air conditioner fan relay
316A Heater fan, auxiliary air conditioner fan relay
48A Right headlight high beam, high beam warning lamp and emergency light
58A Left headlight high beam
616A Heated rear window, combination relay
716A Power window front left, rear right
816A Power window front right, rear left
98A ABS, stop lamps, reversing lamps, cruise control, instrument cluster, warning indicators, automatic transmission solenoid valve
108/16A Anti-theft system, auxiliary fan/cooling fan, cruise control, electronic engine management system, heated seats, orthopedic seats, heated exterior mirrors, power right exterior mirror, tachometer, wiper and washer, heated washer jets, outside temperature sensor
118A Horn, direction indicators, Tempmatic, warning system
128A Anti-theft system, antenna, rear dome light, central locking, radio, power seat, power window relay
138A Diagnostic connector, alarm, automatic antenna, radio, CD player, trunk light, voice alarm system, clock, front interior light
148A Instrument cluster illumination, center console illumination, windshield wiper and headlight washer, right position lamps, license plate lighting
158A Left position lights, license plate light
168A Front fog lights, rear fog light
178A Right low beam
188A Left low beam
1916A Cigarette lighter, radio, heated rear window, sunroof, glove box lighting
2016A Windshield wiper and washer, windshield wiper and headlight washer, headlights
R1Combination relay (Heated rear window, timer, wiper and washer, alarm, direction indicators)
R2Power window relay
R3Fan relay
R4OVP relay

The number 19 fuse is responsible for the cigarette lighter.

Relay box

Located next to the main box. It is also closed with a protective cover.

Type 1




AComfort relay
BPower windows, Power seats
CK3 = Intake manifold heater
K8 / 1 = double additional fan
K9 = additional fan
K12 = Cruise control, fuel cut
DHeadlight cleaner relay
EK12/1 = Cruise control
K17 / 1 = fuel cut
K17/2 = fuel cut with cutoff cutoff

Type 2




AK24 = Comfort relay (USA)
F12 = Additional fuse box, auxiliary heater
BF22/1 = Additional Fuse Box, Fan, Tow Hitch, Heated Seats (AHV/SIH)
CK9 = additional fan
K12 = Cruise control, fuel cut
DK2 = Headlight washer
EK3/1 = Intake manifold heater (PSV)
FF14 = Additional fuse box, security system (EDW)
K12/1 = cruise control boost pressure cut off
K35 = Heated oxygen sensor


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Comments 3

  • thanks for all its really helpful #Morocco 25/10/2022

  • Hi, I have a Mercedes 190e W201 1987. I have a relay in place for R1 and R2, but none for R3 and R4. But no R3 and R4. R3 – Auxiliary Fan Relay – not sure where this is in the car? R4 is for OVP – I have an OVP elsewhere in the car behind the battery. Do I also need a relay in the fuse box? If so do you know where I can get it? Thanks. Perera PS you have a useful site for these older 190e’s.


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