Can the lock be repaired instead of replaced?

Some specialist shops can repair individual components, but it’s usually more cost-effective to replace the whole unit.

Is a faulty lock a safety issue?

Yes, the door may not latch securely or could open on its own — worth fixing promptly.

What’s the lock made up of?

A mechanical latch and an electric motor for the central-locking function.

How do I check whether Rear left door lock AUDI A6 AVANT 2003 fits my vehicle?

Compare OEM reference 4B0839015D, the listed vehicle (AUDI A6 2001-2004), connectors, mounting points and the photographs for this exact item.

What is the condition of Rear left door lock AUDI A6 AVANT 2003?

Listed condition: Used. Current availability: 1 in stock - ready to ship. Review the item photographs and any stated defects as well.

How is Rear left door lock AUDI A6 AVANT 2003 delivered and returned?

Available delivery methods, timing and price for your country are shown in the cart. Review the applicable 14-day return terms before ordering.

Rear left door lock AUDI A6 AVANT 2003

Name: Rear left door lock AUDI A6 AVANT 2003
Brand: AUDI
SKU: 4B0839015D
Price: 22.50 EUR
Availability: InStock

OEM: 4B0839015D

Disassembled car photo

Engine running

Tested before shipping
Guaranteed quality
Fast delivery 3–7 days
14-day returns

Details for this exact part

Code: 4B0839015D
OEM: 4B0839015D
Condition: Used
Availability: 1 in stock - ready to ship
Make, model: AUDI A6 2001-2004
Year: 2004
Engine: Diesel 2.5L 133KW - BDH
VIN: WAUZZZ4B74N015369

What is this part and why does it matter?

This lock holds the rear-left door shut and handles the central-locking function for that door.

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Signs of a faulty part

If you notice any of the following, the part likely needs replacement:

Door won’t close or latch
Central locking doesn’t engage this door
Unusual clicking or buzzing when locking

Installation information

A straightforward job — accessed through the door panel, bolts in and connects the rods and plug.

Frequently asked questions

Often the lock’s actuator motor inside this unit has failed, while the wiring and control module are fine.

Donor vehicle description

VIN: WAUZZZ4B74N015369
Make, model: AUDI A6 AVANT
Year: 2004
Engine: Diesel 2.5L 133KW - BDH
Transmission: 6-speed Mechanic - FTL
Drive: 4DW
Equipment: LHD
Colour: 4A / Y7Q

96 parts from this car

What our customers say

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August 2026
Super good! They came through with the part I needed, quickly and at a fair price! Thanks, and I definitely recommend!
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Ilmars K.
August 2026
I ordered a Heater Blower Motor Resistor for a Toyota Avensis. Delivery took eight days from Latvia to Ireland. I installed it, and everything works perfectly. I wish this company success.
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Aleksandr L.
Toyota Avensis
August 2026
No complaints about Evro Trans itself, everything's fine. But the delivery..... It felt like the order was being carried by turtles. 4 days from Riga to Daugavpils. Judging by the tracking, the parcel just sat somewhere behind a shed for 3 days, then they found it and delivered it the next day. I think that's why I won't be ordering there again.
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Paul F.
June 2026
Super fast delivery of the part, and good quality of the used part. Thanks for the service.
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May 2026
I ordered antifreeze heaters and an auxiliary pump. Everything arrived quickly, the very next day, and matched the description. I'm satisfied.
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February 2026
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November 2025
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Front fender
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