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  3. Classe A
    4. : How to replace the battery of the key of the Mercedes Class A W169

Mercedes Classe A - Video tutorial

Model: Mercedes Classe A W169 - Years 2004-2012
Part: Key
Operation: How to replace the battery of the key of the Mercedes Class A W169

In this new mini guide we will discover how to replace the battery inside the key of your Mercedes Classe A W169. First of all, make sure you have a new CR2032 model battery available and then proceed with the removal of the emergency key contained in the remote control cover of the car. Immediately after, take a small flathead screwdriver and use it to remove the back cover. Finally, remove the exhausted button battery and replace it with the new one. Reassemble the back cover and the procedure is complete.


Posted on 12 March 2024 by ScegliAuto

    Frequently Asked Questions

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Where we find the fuses of the Mercedes Vito W639 with diagram

MERCEDES VITO W639 FUSE DIAGRAM Looking at the fuse diagram located under the driver's seat we find in position F6 the fuse for SAM-SRB in positions from 1 to 9 we find: in the first position the fuse for the left door control unit. In second position the fuse for the right door control unit. In third position the fuse for the PSM control unit. In fourth position the fuse for the PSM control unit. In the fifth position the fuse for the 12 socket located on the base of the passenger seat. In sixth position we find the fuse for the WVC charging line for the vehicle battery. In seventh position we find the fuse for the timer and for the lighting. In eighth position we find the fuse for the auxiliary heating and lastly we find the fuse for the folding roof. The main fuse box is located in the engine compartment on the passenger side and following the diagram we find: 1 Wiper FUSE 2 HORN FUSE 3 fuse Brake light switch 4 fuse for heating 5 fuse Diagnostic socket, rotary light switch, instrument panel 6 fuse Components motor 7 fuse Rear wiper 8 Terminal 87 (1) 9 Terminal 87 (2) 10 Terminal 87 (3) 11 Motor terminal 30 Z 12 Heated rear window 13 Ignition lock / instrument panel 14 Braking system 15 Headlight range control 16 Starter motor 17 Petrol pump 18 Cigarette lighter / glove box lighting 19 Radio 20 M112 ignition coils 20 HFM diesel 21 Automatic gearbox 22 Tachograph 23 Airbag control unit 24 Japanese rear-view mirror 25 Trailer control unit 26 Cut-off relay 27 Terminal 15 manufacturer of bodywork / equipment 28 Transmission unit 29 Part assistance system nza 30 Not assigned - 31 Horn ATA 32 Socket for mobile phone / VICS 5 33 Airbag, automatic child seat recognition 34 Terminal 15 R body / equipment manufacturer 35 Airplane control panel 36 Lumbar adjustment (seat) 37 Mirror light for Trick 38 Rear compartment entertainment 39 Not assigned - 40 Engine fuse (diesel) 10 40 Engine fuse (petrol) 41 Engine fuse (diesel) 10 41 Engine fuse (petrol) F1 Terminal 30 electrical system, alternator F4 Fuse for air conditioning fan (cooling unit) F5 FUSE for the secondary air pump Fuse block F35 IN THE FOLLOWING POSITIONS WE CAN FIND THE VARIOUS FUSES OF THE F35 BLOCK 21 12 Volt socket for passenger compartment, left 22 12 Volt socket for passenger compartment, right 23 Trailer power socket 24 Trailer recognition unit 25 Driver seat adjustment 26 Passenger seat adjustment 27 Electric sliding door, left ra 28 Electric sliding door, right 29 Rear fan 30 Air suspension system 31 Parktronic 32 Tire pressure monitor 33 Sound system 25 34 Mobile phone control unit / VICS, TV booster 35 Auxiliary heating control unit 36 Not assigned 37 System rear air conditioning system 38 COMAND camera control 39 Conventional taximeter 40 12 volt socket, rear right 41 Roof warning light control unit 42 Not assigned.

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