Esp\asr Not Functioning-anti Pollution Fault

[Guest the builder]

i recently bought a c5 hdi exclusive estate {2002} it's great to drive and realy comfortable but every now and again it displays esp\asr not functioning which also brings on the engine management light and the service light,it does'nt affect the performance until i slow down and then it's realy sluggish.

If i switch of the ignition and then back on again the esp\asr light{triangle}goes out but the other two stay on and i get an anti pollution fault but these two go out after a while,It just seems to happen every two or three days usualy at a round 60-70 mph. I took it to a dealer who plugged it in but said they could'nt find anything wrong. Anyone got any idea's

[72dudes]

Hi 'the builder'.

 

My 2.2 HDi saloon has exactly the same problem, and usually happens on a long journey, or occasionally when I accelerate hard.

 

Mine has been diagnosed as a faulty vac solonoid (also known as an egr valve, I believe). Your symptoms sound exactly the same: The esp light comes on as protection, the anti-pollution message appears and the 'service' and engine fault light comes on, and car goes into limp mode to protect everything. Once car is switched off and re-started, power comes back but lights stay on (except esp fault light goes out). Everything agreed so far? Surprised dealer cannot trace fault - try another dealer??

 

OK so the fix is to have this part replaced. Part Number is 1628HC vac solonoid, £27.74 plus VAT plus 2 hours Labour. So that's around £192 at a dealer, depending on location, or around £138 at a Citroen specialist.

 

Mine's not been done because that's still a lot of money for something that only happens occasionally, and it's been fine since January when I first had the problem.

 

So here's a quick fix - thanks to Biff 55 elsewhere on this forum.

 

When faults/lights appear, switch off ignition and wait for all systems to shut down. This can take several minutes, and will be signified by a slight "whir" and the speedo needle flickering. Then turn on ignition and wait for fuel pump to finish whirring. Turn off ignition again and wait for system shutdown. Turn on ignition again.......... etc.... repeat 5 or 6 times (can take 7 or 8 minutes). Finally, start engine, warning lights may come on briefly, but should go out within seconds and hey presto, all systems normal again. The fault code should still be recorded for future diagnostics though.

General consensus is that this vac solenoid is straying beyond limits/tolerance, but not actually failing........ yet!

 

It's a question of how annoying it is for you. Let me know if the quick fix works on yours or if you have it repaired.

 

Good luck.

[Guest the builder]

Hi 'the builder'.

 

My 2.2 HDi saloon has exactly the same problem, and usually happens on a long journey, or occasionally when I accelerate hard.

 

Mine has been diagnosed as a faulty vac solonoid (also known as an egr valve, I believe). Your symptoms sound exactly the same: The esp light comes on as protection, the anti-pollution message appears and the 'service' and engine fault light comes on, and car goes into limp mode to protect everything. Once car is switched off and re-started, power comes back but lights stay on (except esp fault light goes out). Everything agreed so far? Surprised dealer cannot trace fault - try another dealer??

 

OK so the fix is to have this part replaced. Part Number is 1628HC vac solonoid, £27.74 plus VAT plus 2 hours Labour. So that's around £192 at a dealer, depending on location, or around £138 at a Citroen specialist.

 

Mine's not been done because that's still a lot of money for something that only happens occasionally, and it's been fine since January when I first had the problem.

 

So here's a quick fix - thanks to Biff 55 elsewhere on this forum.

 

When faults/lights appear, switch off ignition and wait for all systems to shut down. This can take several minutes, and will be signified by a slight "whir" and the speedo needle flickering. Then turn on ignition and wait for fuel pump to finish whirring. Turn off ignition again and wait for system shutdown. Turn on ignition again.......... etc.... repeat 5 or 6 times (can take 7 or 8 minutes). Finally, start engine, warning lights may come on briefly, but should go out within seconds and hey presto, all systems normal again. The fault code should still be recorded for future diagnostics though.

General consensus is that this vac solenoid is straying beyond limits/tolerance, but not actually failing........ yet!

 

It's a question of how annoying it is for you. Let me know if the quick fix works on yours or if you have it repaired.

 

Good luck.

[Guest the builder]

Hi 72 Dudes.

Sorry i took so long to get back to you.

I got a new egr valve fitted so i was leaving it a while to see what happend.

SO.

After a week same thing .so it obviously was'nt that then.

Now somebody else is telling me if it's the esp\asr it must be something to do with the brakes.

God knows!

[Randombloke]

Now somebody else is telling me if it's the esp\asr it must be something to do with the brakes.

God knows!

 

If it is intermittent, it's worth checking the battery voltage. You sometimes get spurious messages if the battery is not 100%.

 

Get an error code from someone with a diagnostic kit.

[Guest harryh]

If it is intermittent, it's worth checking the battery voltage. You sometimes get spurious messages if the battery is not 100%.

 

Get an error code from someone with a diagnostic kit.

 

Identical fault with my 2003 2.2 Hdi with 39000 miles. Dealer has read the codes (no help there), tried renewing the turbo pressure sensor and downloading new software for the main ECU and the ABS/ESP computers with no effect (other than to make me £131 poorer). They now suggest I spend a grand on a new turbo! Reading various blogs this is a well-known problem with no sure fire solution. Fixes tried by some hopefuls include:

* Renew the ECU

* Renew the particle filter

* Replenish the EOLY fluid

* Check for leaks in the vacuum pipes

* Broken inter-cooler pipe

* Steering angle sensor

* Renew the brake fluid if old

 

With such a variety of potential fixes where do you start? Ciroen UK can't help unless you go through their official network. Trouble is, the car is unsaleable in the meantime. Hey Ho!

[Randombloke]

Identical fault with my 2003 2.2 Hdi with 39000 miles. Dealer has read the codes (no help there)

 

Did you get him to tell you what they were exactly? At least then you can check them on a database for yourself. I have only ever had one ESP/ASR problem which also fired off the anti pollution warning, and it turned out to be the swirl control valve diaphragm.

 

The valve was replaced, and the old one was recycled by an Irish forum member.

 

It pays to find a good dealer or independent.

 

Maybe ask here with a postcode or approximate location.

 

They now suggest I spend a grand on a new turbo!

 

If the turbo is working and providing boost then it's fine. They are actually very simple and reliable and are wrongly blamed for a lot of things. If you can hear it whistle at low RPM then it's working....

 

I would also have good look for leaks.