Citroen C5 HDI Lack of Power and Banging

This is the Forum for all your Citroen Technical Questions, Problems or Advice.

Moderator: RichardW

Post Reply
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

Citroen C5 HDI Lack of Power and Banging

Post by boristhespie »

Okay. I haver a 02 plate Citroen C5I which now seems to lack power. I have no warning lights but particularly when on a hill the car basically dies and I am overtaken by midget cars.

On the downhill or falt it does build up the speed but and as soon as it hits 3000rpm it takes off (I presume the turbo kicking in)

I know nothing about cars but the local dealership want to have it in to check. The car has done 110k miles and I am not sure I want to pay these crooks again to look at the car and do nothing.

I have noticed lately the smell of fumes is greater.

I also have a banging above the undertray at the rear right which indicates something loose.

Can this lack of power be down to Eolys needing topped up or what else could it be. Help would be appreciated as I have to MOT shortly.
steelcityuk
Posts: 1053
Joined: 03 Jul 2006, 21:51
Location: not applicable
My Cars: not applicable
x 1

Post by steelcityuk »

Hi,

Could you provide more details about the engine? Is it a 2.2 or a 2.0 HDi? If a 2.0 HDi is it 90 or 110 BHP? The mention of Eolys suggests a 2.2 HDi.

Could well be a sticking wastegate or faulty solenoid valve. I'd suggest a trip to your local Bosch specialist.

Steve.
not applicable
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

Not sure

Post by boristhespie »

It is an 2ltr HDi (I think but nearly sure 110 BHP, how can I tell)


The power is simply not there until 3000 revs. Got a long journey to France from scotland coming up and the MOT in the next week or so, so would be grateful of any further advice.


Incidentally does this model not use Eolys?

This was only a thought after reading this forum.
addo
Sara Watson's Stalker
Posts: 7098
Joined: 19 Aug 2008, 12:38
Location: NEW South Wales, Australia. I'll show you "Far, far away" ;-)
My Cars: Peugeot 605
Citroën Berlingo
Alfa 147
x 93

Post by addo »

Is this an auto? If so, are there some little lights flashing on the dashboard that didn't show previously?
Citroenmad
Posts: 8125
Joined: 04 Dec 2008, 22:08
Location: Northeast
My Cars: 07 Citroen C6 V6 HDi Exclusive - Red
07 Citroen C5 HDi VTR - Red
09 Citroen C3 1.4i VTR - Silver
01 Citroen Saxo 1.1i Forte - Mango Orange
93 Ford Mondeo 2.0i GLX
19 Hyundai i10
x 110

Post by Citroenmad »

What spec is your C5? If its a LX it could be either a 90 or 110BHP, if its an SX or above it will be the 110. The 110 has more pipes under the bonnet, so thats an easier way to tell too. Also, both of our C5s has a sticker on the B pillar in the door shut on the drivers side, which says 2.0HDi 110bhp. Check for that.

The earlier 2.0HDi (both 90 & 110) does not have a FAP filter, therefore no Eolys fluid.

So it is performing fine after 3000rpm?

Our C5 estate would not perform under 2000rpm, it needed a replacement MAF sensor as the one which had just been fitted was an aftermarket jobbie, which it didn’t like. A genuine Citroen one cured that problem.

Yours sounds worse, so id guess it might have put in codes which could be read by a garage with a Lexia program.
Chris
07 Citroen C6 V6 HDi Exclusive - Red
07 Citroen C5 HDi VTR - Red
09 Citroen C3 1.4i VTR - Silver
01 Citroen Saxo 1.1i Forte - Mango Orange
.
93 Ford Mondeo 2.0i GLX
19 Hyundai i10
steelcityuk
Posts: 1053
Joined: 03 Jul 2006, 21:51
Location: not applicable
My Cars: not applicable
x 1

Post by steelcityuk »

Well as others have said it's not a FAP so no Eolys.

Very strange behavior for a HDi, both that I've had (110 bhp) pull hard from 1500 (max torque about 1750rpm) and aren't really worth reving much higher than 3000rpm.

If the MAF sensor is that faulty unplugging it will increase the performance but will log a fault in the ECU memory and light the engine management indicator. A quick simple test.

Maybe a silly question but does the engine management light show before starting the engine - I'm thinking along the lines of a blown bulb? In any case I think you need the codes reading. Finding faults on HDi's by the search and replace method can be very long winded and expensive. I'd still recommend a Bosch specialist if only for the diagnosis.

Steve.
not applicable
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

HDI 2.0 LX (I THINK) 110BHP

Post by boristhespie »

The car is HDI 2.0 and a LX (I THINK). It is 110 BHP and a manual.

As said it has little grunt. It does pull away but the moment it hits a hill it struggles and loses speed and can't accelerate until it his 3000. On the flat it is okay.

You mention unplugging the MAF sensor. I have zero idea regarding cars so don't know what this is.



So there is no Eolys to worry about?

it does smell more polluting than most times and previously had to have flusher in the fuel tank to resit MOT which were failed due to emmissions. MOT due in next week.

Can I go to a Bosch service agentjust to have read?
Citroenmad
Posts: 8125
Joined: 04 Dec 2008, 22:08
Location: Northeast
My Cars: 07 Citroen C6 V6 HDi Exclusive - Red
07 Citroen C5 HDi VTR - Red
09 Citroen C3 1.4i VTR - Silver
01 Citroen Saxo 1.1i Forte - Mango Orange
93 Ford Mondeo 2.0i GLX
19 Hyundai i10
x 110

Post by Citroenmad »

An LX has black bump strips?

And no, 2.0HDis dont have Eolys fluid, only the 2.2HDi and later HDis.

The MAF sensor is located on the air intake pipe, if you look at the air box, which is to the left of the battery, there is a black box (airbox), there is a big pipe comes out of the box and runs along the top of the engine bay, to the right of the engine. On that pipe there is a thing sticking out, a grey plug with wires attatched. That is the MAF, SteelCity suggested unpluging that to see if it makes a difference to the cars performance.

Im not sure if a Bosch agent can read codes on C5s, Steve will probaby know.
Chris
07 Citroen C6 V6 HDi Exclusive - Red
07 Citroen C5 HDi VTR - Red
09 Citroen C3 1.4i VTR - Silver
01 Citroen Saxo 1.1i Forte - Mango Orange
.
93 Ford Mondeo 2.0i GLX
19 Hyundai i10
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

Thanks

Post by boristhespie »

Thanks you guys you are being really helpful. Sooner I get to the bottom of that the happier I will be my journey wont be knackered. Any further info welcome.

Anyway tried to get the sensor off the airpipe but it is extremely tight. The wires offer no room for manouver.

As for lights, I get the oil light and the catylitic convertor lights as well as red bulb when turning ignition but they go right after the engine is started. Nothing remains on. This is normal is it not?
User avatar
CitroJim
A very naughty boy
Posts: 49518
Joined: 30 Apr 2005, 23:33
Location: Paggers
My Cars: Bluebell the AX, Polly the C3 Picasso, Pix the Nissan Pixo, Propel the duathlon bike, TCR Pro the road bike and Fuji the TT bike...
x 6156
Contact:

Post by CitroJim »

I know little about the HDi but from the symptoms, it soulds like it's lost almost all of its turbo boost.

It'll be worth checking all the turbo hoses are intact and that the intercooler has no sprung a leak. I've heard of the hoses splitting on some models in the past. also check for kinks in a hose, restricting airflow. The turbo wastegate may be sticking open perhaps?

Loss of boost on the old-school diesels make them truely gutless.
Jim

Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
boristhespie
Posts: 906
Joined: 07 May 2009, 19:51
Location: Angus
My Cars:
x 1

Post by boristhespie »

But wouldn't that mean the boost recieved at 3000 rpm would not happen?

When it hits 3000 rpm it shoots off physically pushing you back in your chair.

I was told this is when the turbo kicks in.
User avatar
CitroJim
A very naughty boy
Posts: 49518
Joined: 30 Apr 2005, 23:33
Location: Paggers
My Cars: Bluebell the AX, Polly the C3 Picasso, Pix the Nissan Pixo, Propel the duathlon bike, TCR Pro the road bike and Fuji the TT bike...
x 6156
Contact:

Post by CitroJim »

boristhespie wrote: When it hits 3000 rpm it shoots off physically pushing you back in your chair.
Good point :oops: Must read threads more carefully. It could still be a probem with the activation of teh wastegate though as at 3000rpm, even if the wastegate was stuck open there would likely be sufficient boost developed to make it run more or less normally at high revs...
Jim

Runner, cyclist, time triallist, duathlete, Citroen AX fan and the CCC Citroenian 'From A to Z' Columnist...
MikeT
Posts: 4809
Joined: 11 Jun 2007, 16:17
Location: Christchurch, Dorset. UK
My Cars: 2005 C5restyle 1.6HDI 16v 110hp VTR Estate
2008 C5 X7 1.6HDI VTR+ Saloon
x 231

Post by MikeT »

Could it be a blocked Cat or exhaust?
User avatar
reblack68
Posts: 1047
Joined: 11 Feb 2004, 01:28
Location: United Kingdom
My Cars:

Post by reblack68 »

A 110HDi should start boosting from about 1500RPM.
Richard

No French cars of my own at present.
Care of a 1994 205 D.
User avatar
rabenson
Posts: 328
Joined: 15 Jul 2002, 15:14
Location: Northallerton, N Yorks. UK
My Cars:

Post by rabenson »

reblack68 wrote:A 110HDi should start boosting from about 1500RPM.
Agreed - the 110HDI pulls strongly and smoothly from down there, not like the old TD thump in the back as the turbo cuts in at higher revs
2007 C6 2,7 HDI exclusive 95k
2004 C5 VTR HDI 103k
Post Reply