Behr Citroën Peugeot EAD515 P2861001U and 31 647947

Description

BEHR heater servo motor for CITROEN C5 X7 and PEUGEOT 407 facelift cars

Part description

This BEHR heater servomotor is an electrical component used in the heating/air conditioning system, where it ensures precise control of the flaps and thus correct regulation of air flow and temperature in the cabin. This is a part that is often searched for by number, so we include all known designations in the description: EAD515, P2861001U and 31 647947.

Suitable for the listed models in the documents, typically as a replacement in the event of a temperature regulation malfunction, incorrect air routing or non-functioning control of the heating/air conditioning flaps.

Technical information

• Manufacturer: BEHR
• Model: Citroën C5 X7; Peugeot 407 facelift
• Other numbers: P2861001U; 31 647947

Product codes

• Product codes: EAD515; P2861001U; 31 647947

Installation recommendations

Generally/typically for heater servomotors, the exact procedure and approach varies depending on the heater/air conditioning design and the specific installation in the car. Below is a practical universal procedure that is most often used in practice.

1) Before assembly

• Compare new and original part: codes EAD515 / P2861001U / 31 647947, body shape, mounting, connector (number of pins and its orientation).
• Inspect for cracked plastic, damaged mounting lugs, or squashed driveshaft/axles (if visible).
• Inspect the connector and wiring in the car: oxidation, loose pins, broken wires.

2) Necessary tools and materials

• Basic set of screwdrivers and bits (according to the type of screws in the interior)
• Ratchet with extensions / small nuts (according to access)
• Plastic pry bar for removing covers
• Flashlight
• Electrical contact cleaner (recommended)

3) Step-by-step assembly procedure

1. Turn off the ignition and disconnect the battery (typically to protect the electronics and to keep the servo motor from moving during handling).
2. Ensure access to the servo motor by removing the necessary covers/trimmings (the procedure varies by car model).
3. Before disassembly, note the position of the part and the wiring, or take a photo.
4. Disconnect the electrical connector – do not pull on the cables, release the connector lock.
5. Loosen the fixing screws/grips and carefully remove the servo motor.
6. Check the mating part (flap/connection): for stuttering, excessive play or mechanical damage (typically the cause of repeated failure).
7. Clean the connector and the surrounding area from dust/dirt so that the part fits well.
8. Place the servo motor in the correct position so that the attachment and the drive fit without force.
9. Attach the servo motor back with the screws/mounts (tighten evenly, without stretching the plastic).
10. Connect the electrical connector and verify that it clicks firmly.
11. Reinstall the removed covers/trims.
12. Connect the battery.
• 4) Post-assembly checks and test drive/function verification
  • Turn on the ignition and gradually try changing the temperature setting and the air flow direction (if available in the car equipment).
  • Watch for unusual noises (clicking, skipping), which typically indicate a bad seat or a problem in the flap mechanics.
  • After a short drive, verify that the heating/air conditioning control responds stably and without interruptions.

  5) The most common assembly mistakes + how to avoid them

  • Exchange of part according to appearance – always check the match according to the codes EAD515 / P2861001U / 31 647947 and the connector.
  • Forcible deployment – if the part cannot be seated, the drive/valve is usually in the wrong position; take a step back and check the landing.
  • Ignoring a Stuttering Flap – a new servo can go quickly if the flap mechanism is stiff or damaged.
  • Connector damage – disconnect via the connector fuse, not the cables.

  Reasons why the part is damaged

  • Wear of gears and internal mechanism due to frequent adjustment of flaps (common in older cars).
  • Stiff or damaged damper mechanism heating/air conditioning – the servomotor is then overloaded.
  • Moisture and oxidation of contacts in the connector or around the HVAC unit.
  • Voltage fluctuations and electrical problems (bad contacts, transient resistances in the wiring).
  • Incorrect installation (crooked seating, overstretched attachment, stress on the connector).