EGR Valve Cleaning 1.9cdti

Here is a quick photo guide of how to clean your EGR Valve, my car is a Vauxhall Vectra C with the 1.9cdti 150 engine on a 2006 plate. Its got around 46k on the clock and a few months back the EML came on a quick trip to a local Auto Electric place confirmed it was the EGR Valve stuck error.

Apparently these can stick quickly and then free them selves but still throw the error up or then can cease permanently. Anyway the light came on again so i decided that it was probably worth taking off the EGR Valve and giving it a good  clean and the mouth of the inlet manifold.

I’m not a mechanic by trade but i felt confident that this was easy enough to fix and probably took me around 40 minutes.

Things you will need

10mm Spanner or Socket
13mm Spanner or Socket
Flat head screw driver
Carb/Injector cleaner (i used 2 cans)
Small Paintbrush

1: Pop your bonnet and it should look like the below
Vectra C 1.9cdti Engine Bay

2: Lift off the black plastic engine cover, these are quite flexi and hard to damage
Vectra C 1.9cdti Engine Bay No Cover






3: Your now looking at a bare engine, your EGR Valve is directly under the top right engine mount.

4:Undo the nuts that are holding the engine mount on, don’t drop the nuts.
EGR Valve With Engine Mount






5: You’ll now have something like
EGR Valve Without Engine Mount

6: There is a sensor cable which attaches to the plastic side of the EGR Valve, i found this fiddly to remove whilst bolted to the engine, so i left it attached until the EGR Valve was free and removed then, now remove the bolts i would suggest leaving a top one till last, there is also a metal gasket between the EGR and inlet mani, mine was stuck to the engine, but be careful and try not to lose it.

7: The bolts should loosen off easily and you’ll have something like this, you can just see the black gasket, on the inlet mani
EGR Valve Free




8: There are the 2 top bolts here which connect to a loose bracket, underneath of the EGR. To be honest you can remove these first if you want, infact its probably easier, i think that there is a gasket under this between the EGR and the connection, anyway I’ve lost mine and all seems fine.

9: Your EGR Valve is now free but remember to disconnect the Sensor. You should have something like the below.
EGR Valve




10: As you can see mines pretty caked with soot, soak with Carb Cleaner and wrap a rag around the screwdriver to clean the inside, if i had the time, i would of left the EGR Valve to soak in Carb Cleaner over night.

Now all you need to do is fit the EGR back on to your car. a word of warning before you start your car.

Mine didn’t want to start the first time and it did idle roughly for a minute or so, which I’m putting down to loose soot and Carb Cleaner.

12 thoughts on “EGR Valve Cleaning 1.9cdti”

  1. thanks for the info ive had the egr replaced and also cleaned just after a year of being fitted it is now once again playing up lose of power and it goes into limp mode I will now clean the egr myself thnx again

  2. Hi Chris

    I’m not a mechanic by any means but once you’ve done it the next time you’ll be 50% quicker. To be honest i got mine plated off and deleted from the ecu same with DPF filter cars now running just under 190 BHP

  3. I got a engine management light on and as I read it myself came up with PO400 which is the EGR valve.
    This info will be very useful when I strip mine and clean it myself. Thanks a ton

  4. You can buy the blanking plates from ebay, i went for a solid one to stop soot completly going through since my EGR was now disabled. You can get them with a few small holes in.

    Try and get the thinnest one you can as getting the EGR can be a pain if its a thicker plate.

  5. Thanx for the gen. I looked at your and other sites on egr info.I have a 55 plate diesel Vectra estate 150 bhp,I followed the instructions you gave,the pictures are a big help,and cleaned the egr and boost sensor yesterday 10/1/2015 with excellent results. Thanx again.

  6. Hi where is my boost sensor as it code p2279 🙁 and no power but does do 70mph eventually lol I’ve got a 55 plate 1.9 cdti vectra 150bhp model any help would be appreciated

  7. Why are we all putting up with the crap way cars are made now?
    In the 80’s and 90’s diesel cars were far more reliable and cheaper to run so why have things gone so downhill?????
    A peugeot 205 diesel would be far more reliable than anything diesel now.

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