Error Code P2427

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AwesomeFury
Caddy2k Groupie
Posts: 10
Joined: Tue Jul 30, 2024 1:52 am
Engine size/power: 1.6 CR TDI (75bhp)

Error Code P2427

Post by AwesomeFury »

Hi,

My 2011 mk2 Caddy 1.6 TDI DSG is having a couple of issues.

one is the error code P2427, which seems to be an issue with the "exhaust gas recirculation (EGR) cooling valve control circuit" which i just found on google.

the second is it leaks coolant slowly, need to be topped up every 3-6 Months or so.

I'm just wondering before I replace the whole EGR, if it could be related to the coolant issue?
Is there a couple of simple tips to fix this issue easily, like worth trying before pulling everything apart.

Thanks
Dislexicdonkey
200BHP+
Posts: 237
Joined: Sat Sep 28, 2019 9:43 pm

Re: Error Code P2427

Post by Dislexicdonkey »

I’d assume that you may have a leak on the egr cooler, mine apparently was weeping before it failed. I had mine replaced but the new one only lasted a year and a few months, but I believe what was fitted was a non genuine (although was told it was a pierberg unit). So if your issue is the egr cooler which is very common, I’d suggest from my own experience to replace with a genuine part which can be purchased through tps or your local dealer.


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PeterAFox
Twin Turbo poster
Posts: 309
Joined: Thu Aug 24, 2023 8:14 am
Engine size/power: 1.9 TDI (104bhp)

Re: Error Code P2427

Post by PeterAFox »

You could have a slight leak within your cooler between the coolant and 'exhaust gases' so the motor burns it when it's fed back into the pistons.
I would check the wiring first, as that's what the fault code indicates - is it an electronic valve? (mine is a mechanical vacuum operated one)

Error code:

Fault Location:
Exhaust Gas Recirculation (EGR) Cooling Valve - Circuit High

Possible Cause:
Wiring/Connector(s) short to positive.
Exhaust Gas Recirculation (EGR) cooling valve.
AwesomeFury
Caddy2k Groupie
Posts: 10
Joined: Tue Jul 30, 2024 1:52 am
Engine size/power: 1.6 CR TDI (75bhp)

Re: Error Code P2427

Post by AwesomeFury »

Appreciate the replies, will look into both and report back.
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