Calling mechanics (and/or Xtrail owners)

SimpleSimon

Well-Known Member
Hi all,
Last year my Xtrail's engine management light came on. Took it to a local garage who said it was the EGR valve. As the car was driving perfectly I ignored it for a few months until it started randomly going into "limp mode". I had a new EGR valve and very shortly after realising that the problem wasn't fixed I also had a new boost pressure sensor.
Fast forward about 5000 miles and the light is back on. Took it to a different garage (moved house) and he plugged it in and told me... EGR system.
I told him it had a new EGR valve 5k ago and he said it could be a blip or misreporting. He cancelled the fault code and for the rest of the day I drove around thinking it was fixed. Started it from cold the next morning and got the light back immediately.
Car still drives fine.
Any ideas?
 

long_range_rob

Well-Known Member
I HATE EGR systems! They are the devils work! All they seem to do is cause problems.

I can't offer anything other than sympathy as I had no end of issues with EGR on a Frontera. I could recommend 5 litres of unleaded and a swan vesta as a solution though.
 

LuckyEddie

Well-Known Member
Had a similar problem on the C5 we had.
Luckily the replacement was in warranty but still caused us to lose faith in the motor.

Replaced the C5 with a Disco 2 and removed the EGR - let see the guys who take the mick out of these motors beat that.

Hope you get yours resolved.

Ed
 

Monkey Spanker

Well-Known Member
I had a 02 plate one and it was nothing but trouble! Similar issues too. I've still got a couple of Mass Airflow Meters which you may well need! Final straw for me was two new injectors which cost £800! I then bought a whole Vitara for £800 which I did a vast amount of miles in without issue an then sold for £350!
I also had a new CAT, New Turbo, new sub-frame. The inlet manifold became clogged with black ***** recirculated from the exhaust. You can get a blanking plate for it which might be the solution. Good luck!
Make sure you get the right one though!
http://www.ebay.co.uk/itm/EGR-Valve-restricter-Plate-Fits-T30-X-Trail-Almera-Primera-2-2-Di-DCi-Y22-/112097735222?hash=item1a198bb236:g:sucAAOSwHoFXsvIS
MS
 

Cyres

Well-Known Member
Hi,

I have a 2.0 Zafira DTI its done about 200k miles, for the last 18 months I had an itermittent engine management light issue, no sense to when it would come on, just goes into limp mode take foot off accelerator and would clear, other times had to switch off and restart. Anyway last week when driving over to Cardiff had big issues and the idle was very rough.

OK I though it might be EGR valve and looking at threads on line its a major can of worms.

Booked it into my local garage, who are pretty good, EGR fault code , so they put a can of EGR cleaner through the manifold and 2 cans of cleaner into the tank. (Fortes brand) and guess what issue resolved, Zaffy running better than ever. Not missed a beat and has done 700+ miles.

So two options, try above at cost of £50 and if this fails I suggest you take it to a very specialist diesel engine factors with the latests test equipement. There is one in Bristiol on the Feeder who I was going to use if my local garage had failed.

I hope this might help.

D
 

nun_hunter

Well-Known Member
I've blanked mine off and had the ecu remapped to remove the egr coding so it doesn't throw up an errors. Problem may well be that the pipework to and from the egr is so coked up with soot and crap that the flow sensor is the one playing up even though the egr valve is still working. You can go down the TerraClean route which is good and does work for about £250 if you have the standard clean and the egr system done too but a remap was 240 and that has eliminated any egr problems as I've blanked it and the car doesn't even know it ever had one fitted. More power, better economy (if you drive it like befkre) and no clouds of black soot on acceleration.
 

SimpleSimon

Well-Known Member
Well I've done a bit of googling and I'm fairly confident that I probably don't need another new EGR valve. Apparently the fault usually generated relates to a drop in the flow of gas which can stem from a blockage or restriction anywhere in the system, not necessarily a clogged EGR valve itself. I've been advised that a good run at high revs might get everything hot enough to burn off the deposits and all will be well.
I've also ordered a cheap Bluetooth code reader off "that auction site" which should enable me to read and cancel fault codes myself, so I can see if I've succeeded.
I think I'll buy some Redex and hoof it down the local dual carriageway for a bit one gear too low.

On a side note, I couldn't swear to it but I have recently put "cheap" diesel in the car on a couple of occasions, which I don't normally do. Makes me wonder...
 

Highlandsjohn

Well-Known Member
Well I've done a bit of googling and I'm fairly confident that I probably don't need another new EGR valve. Apparently the fault usually generated relates to a drop in the flow of gas which can stem from a blockage or restriction anywhere in the system, not necessarily a clogged EGR valve itself. I've been advised that a good run at high revs might get everything hot enough to burn off the deposits and all will be well.
I've also ordered a cheap Bluetooth code reader off "that auction site" which should enable me to read and cancel fault codes myself, so I can see if I've succeeded.
I think I'll buy some Redex and hoof it down the local dual carriageway for a bit one gear too low.

On a side note, I couldn't swear to it but I have recently put "cheap" diesel in the car on a couple of occasions, which I don't normally do. Makes me wonder...
Try a bottle of this,works wonders..[FONT=&quot]




 

Chasser

Well-Known Member
Had similar issue in my shogun, removed the EGR air pipe and it was blocked solid with soot! A satisfying 30 minutes later and about a litre of break and clutch cleaner it was good as new and haven't had bother from it since.. that was a couple of years ago now. Every time I get the opportunity to give it a good ragging now I do, leave it in 4th and cruise at 70 for extended periods. IMG_2260.JPG


Sent from my iPhone using Tapatalk
 

SimpleSimon

Well-Known Member
Just for the benefit of any interested parties or anyone suffering similar problems:
I pulled the pipe today that "feeds" the EGR from the exhaust manifold. Unfortunately I could only get one end free (couldn't get a spanner on one of the nuts without removing loads of other bits) but by looking into this end I could see there was a lot of soot and cack built up in there. I used brake cleaner and kitchen roll to get off as much as I could reach, which was a fair bit! I'm optimistic that it'll be enough for the light to stay off when I can get the fault cancelled.
Fingers crossed...
 

nun_hunter

Well-Known Member
Just remember an EGR valve is only open when the engine isn't under load as it does reduce power. So if you try to floor it in the hope it'll unblock it it won't do anything as the valve will remain shut. You need to use the cleaners or additives or a professional system like the TerraClean which keeps the revs low and no load on the engine so the exhaust flows through the pipework and valve.
 

Cyres

Well-Known Member
I tempted fate when I posted as on way home all sorts of issues with blessed light, however has now returned to normal intrestingly the air temperature had significantly risen.

I am in agreement in my case I dont think its the actual EGR valve and the soot build up is the probable cause. Also re the comment about engine under load, my Zaffy spends all its life on the M5 and is running at a constant 70 mph for 40+ mins. The issue when it occurs intermittently is when the engine is under peak load ie as I am about to crest the long drag up th M5 from Clevedon, I can almost predict the exact spot and it occurs at 67 mph at approx 2650 rpm, light comes on and I lift foot off accelerator and light goes off, I now do it automatically.

I was also going to suggest you buy an OBR which you can blue tooth to your mobile which will capture the engine data when the lEM light is triggered.

you need to locate the multi point connector to plug it into. Suggest you buy a more expensive one and it would appear you can download an app which will assist you.

I hope this helps

D
 

Cyres

Well-Known Member
Some other thoughts, I have driven probably 200k in my two zaffies and they run exclusively on supermarket diesel so i dont think its an issue. Data suggests it might be from oil which is leaking past the piston rings and combusting and creating deposit, so might be a need for top quality oil. Huge ammount on the net and esp on what type of treatments to use.

D
 

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