Particulate Matter Sensor

[BenWomersley]

Had a warning light and error code P24C600 (particulate matter temperature sensor failure)

2019 T6, CXFA 150hp

I have bought a replacement sensor:

04L906261F - Bosch 0281007046/047

it has arrived today and I have just double checked compatibility to see that it isn't compatible with pr number 7CS. Just checked my data sticker to see 7CS.

I can't seem to find an appropriate replacement sensor. Apparently I am looking for:

04L906261G - Bosch 0281007405/406

Can anyone tell me where I might be able to find one / if the one I have will work? Everything I have read suggests the 'G' version is a slight update and is backwards compatible but can't see the 'F' version will be forwarded compatible.

Thank you!

​

 

[manfrotto]

See this thread -

J

Thread 'Particle sensor fault'

27 Mar 2023

Can anyone help , I have a 2019 t6 with 29670 on the clock and it’s 14 weeks out of warranty! Had the engine light come on p24c600 passive /sporadic particle matter sensor circuit and passive/ sporadic particle temp sensor temperature circuit , reset went off for two weeks now back on reset and on following day also noticed the adblue counter stuck on 5000 miles and no dilution figures ? Guessing the sensor has had it . Rang vw been given part no 04L906261G but non in stock everyone else I ring says it should be 04L906261F which is about £140 cheaper does anyone know the difference even...

• juggy1
• Replies: 4
• Forum: Vehicle Faults, Warranty Repairs Issues & Problems

Did you check what version your current sensor is? It is likely version F anyway.

 

[BenWomersley]

I read that yes: they didn't say if they had the 7CS pr number so wasn't sure if theirs would be happy with the cheap(er) and available unit and mine wouldn't.

I haven't no, I will try to pop my head under shortly and see

 

[manfrotto]

There is also a Tech bullletin about drilling a hole in the CAT to allow condensation to drain out (this is often what causes the sensor to fail)

 

[DXX]

VW genius, just like there always used to be. Who needs to re-invent the wheel.

 

[BenWomersley]

Original sensor is the G version, managed to find a replacement from Motul Nottingham who were incredibly helpful.

Just looking at drilling the 3mm hole as I don't want the inordinately expensive replacement sensor to prematurely fail. I have attached a picture of my exhaust. It's hard to tell from the VW tech bulletin: am I right to think I should be drilling through the CAT, through that lower hole in the metal support plate (circled). Obviously don't want to mess this up.

Thanks again

 

[manfrotto]

This is where I read the information.

VW TRANSPORTER OWNERS CLUB | Help needed from a VW tech 🙏 | Facebook

Help needed from a VW tech 🙏! I have a t6.1 2.0l high line 2021, recently the engine management light appeared, after a scan the error read “P24C600 Particulate Matter SensorTemperature: Circuit” I...

www.facebook.com

Check that there isn't a hole already
This thread shows where a factory hole is located

VW T6.1 Forum uk | Does anyone have a picture of the 3mm hole in the exhaust to remove the condensation before it hits the Particulate sensor | Facebook

Does anyone have a picture of the 3mm hole in the exhaust to remove the condensation before it hits the Particulate sensor? Cheers

www.facebook.com

 

[StratosFearXX]

This is where I read the information.

VW TRANSPORTER OWNERS CLUB | Help needed from a VW tech 🙏 | Facebook

Help needed from a VW tech 🙏! I have a t6.1 2.0l high line 2021, recently the engine management light appeared, after a scan the error read “P24C600 Particulate Matter SensorTemperature: Circuit” I...

www.facebook.com

Check that there isn't a hole already
This thread shows where a factory hole is located

VW T6.1 Forum uk | Does anyone have a picture of the 3mm hole in the exhaust to remove the condensation before it hits the Particulate sensor | Facebook

Does anyone have a picture of the 3mm hole in the exhaust to remove the condensation before it hits the Particulate sensor? Cheers

www.facebook.com

I was just trying to find that picture! That's my OEM hole

 

[manfrotto]

Read also this thread - apparenly it only applies to some engine variants.

L

Thread 'Interchangeable Particulate Matter Sensor??'

28 Apr 2026

69 plate 205 DSG kombi van.

Engine management light illuminated.
Diagnosed as Fault code for the particulate matter sensor.
Also advised by VW to drill a 3mm hole in the DPF casing to allow condensation to drain away?!?

Sensor G784 must also be replaced. 04L906261G

I can only find 04L906261K online...

Conflicting information about these being interchangeable?
The price difference is significant as the garage (VW & Audi Specialist) will only source from the manufacturer.

Please advise...

• leemyles18
• Replies: 10
• Forum: Engine, Gearbox, Exhaust, Drivetrain

 

[BenWomersley]

It doesn't look as though mine has a factory hole and all the pictures I have seen seem to show the T6.1 CAT with the factory hole, which looks completely different to mine.
The one in the bulletin looks to be the same as mine with the support plate but can't see any evidence of anyone having drilled this style exhaust.
Yes, I read that it only applies to certain engines but it would be helpful if the bulletin would confirm which it applies to!

 

[DXX]

If it’s for the purpose of draining condensate it needs to be at the lowest point.

 

[StratosFearXX]

It doesn't look as though mine has a factory hole and all the pictures I have seen seem to show the T6.1 CAT with the factory hole, which looks completely different to mine.
The one in the bulletin looks to be the same as mine with the support plate but can't see any evidence of anyone having drilled this style exhaust.
Yes, I read that it only applies to certain engines but it would be helpful if the bulletin would confirm which it applies to!

My factory hole is on a DNAA engine if that helps.

 

[manfrotto]

@BenWomersley I dont think a hole is required in your DPF as it has the CXFA engine.

From what I have read this applies to all engines with Euro 6D (from model year 2021 onwards) and in connection with engine codes: DM* and DN*

It is all to do with parts installed to do with the ADblue system and where they are located.

THis is an interesting read, which explains the whys and wherefores. (use translate if it comes up in German)

Neue VW-Lösung Loch in DPF bohren,TPI2068597/3 Fehler P24AE

Hallo, es gibt eine neue TPI. Mich hat es bei 45TKM erwischt und dank Erwin, weiß ich jetzt auch was gemacht wurde. Es wird ein 3mm Loch in den DPF gebohrt, als Kondensatablauf. Da die NOX Sonde G784 sonst durch Kondensatablagerungen geschädigt werden kann. Bei mir war die Motorkontrolleuchte...

tx-board.de

 

[BenWomersley]

Thanks everyone. Glad I checked before drilling!

Old sensor came out with an open ended spanner after a bit of heat to the nut and 24 hours in penetrating fluid. New one fitted, fault cleared and all seems well again