Cirtroen Relay 2021 EGR valve issue

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EvasiveSnail
Posts: 1
Joined: 12 Jan 2026, 13:04

Cirtroen Relay 2021 EGR valve issue

Unread post by EvasiveSnail »

Hi everyone,
I'm working on my 2021 Citroën Relay van (registration ND71 VDZ) – it's the 2.2 BlueHDi diesel model. I'm trying to locate and replace the EGR valve (and possibly clean/check the EGR cooler) because of suspected issues. OBD CODE P046C


I've removed the engine cover and taken some photos of the engine bay (attached below if the forum allows), but the rear area is super cluttered with hoses, wiring, and brackets. From what I've read, the EGR valve should be at the back near the firewall, often integrated with the cooler (small rectangular unit with coolant hoses), but I'm struggling to spot it exactly. Any tips
?

Exact location on the 2021+ 2.2 BlueHDi – which components to move out of the way first (e.g., specific bracket or hoses)?
Common pitfalls or things that go wrong during replacement?

Also, if anyone knows how to confirm my exact engine code/sub-variant from the registration plate (ND71 VDZ) or VIN – I'd really appreciate it!

Thanks in advance for any advice, photos, or links – much appreciated as I'm trying to DIY this to save some cash!
Cheers,
EvasiveSnail (London)
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My Vehicle:
RELAY 35 HVY L4H2 ENT BHDI SS 35 HEAVY
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mickthemaverick
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Re: Cirtroen Relay 2021 EGR valve issue

Unread post by mickthemaverick »

You may find this video helpful: :)
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
perfidus
Donor 2024
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Joined: 13 Jun 2024, 09:16
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Re: Cirtroen Relay 2021 EGR valve issue

Unread post by perfidus »

As you already found in the video above te EGR unit in 2.2 BlueHDI sits in front of the engine, the turbo is on the back. The 2.0Blue HDI have the EGR in about the same place, the difference between them is the cooler for exhaust gas integrated in the valve unit for 2.0.
I exchanged mine much easyer but I also took out the front of the car for other repairs on the same time (A/C condenser etc.)
Those who don't know history are destined to repeat it!
Will27
Posts: 6
Joined: 17 Jan 2026, 21:02

Re: Cirtroen Relay 2021 EGR valve issue

Unread post by Will27 »

The video is ford engine think poster has the 2.2 DW12 psa engine have similar problem with mine
PaulC5
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Re: Cirtroen Relay 2021 EGR valve issue

Unread post by PaulC5 »

Not sure but are you asking for some help ?