MikeLane

"This part is not shown for the earlier C5 model. The procedures do not say how to replace it - if you get chance, ask the garage how to do this." Hi Paul - (thought I'd posted this reply yesterday but it appears not!) Peter (Boxall) reckons this part can be accessed and replaced simply by removing the (passenger) glove box, in abround 3/4 - 1 hour. Hence the c.£50 labour estimate. I'll watch what he does and let you know.

Peter reckons he can replace the part after removing the (passenger) glove box, hence about 3/4 - 1 hour to do the job. I'll try to watch what he does and confirm or otherwise.

"Mine's booked in for a Lexia check at my Indie (Citroen Care at Rake, near Petersfield - Peter Boxall) to see whether this sensor is working on Wednesday." Sure enough the temperature and humidity sensor has failed but (thank goodness) everything else is OK. New sensor c. £35 and about £50 to fit it so...... (Peter Boxall also fixed my recalcitrant window control!)

Hi Paul - I saw the "Black" Cactus but was not impressed enough to take a test drive. Depending on the model chosen (Touch, Feel, Flair) one then has to go through the "configurator" (available on the Citroen web-site) to see what is and what isn't included. On the Flair (top of range) I still needed to specify 7 additional items (including black paint at £495, Glass roof at £495, spare wheel at £75 and CD player at £139.63) as well as engine, wheel type etc. For the Feel I would need to specify a dozen items to get a similar spec. The car is "alright" but doesn't compare with my lovely C5! (except for excellent lower consumption and CO2 figures).

Just spotted this on "French Car Forum" : The humidity sensor problem was traced to the sensor behind the three slots on the fascia, just next to the glovebox (it's a C5 II). This unit is a combined temp and humidity sensor. It was gunked up pretty badly and its circuit board was corroded. A new part was £41.12+VAT but at least the climate control now works perfectly. Mine's booked in for a Lexia check at my Indie (Citroen Care at Rake, near Petersfield - Peter Boxall) to see whether this sensor is working on Wednesday. Might take a look at the Black Cactus tomorrow!

Thanks Paul (and for your comments on the C4). I've now spotted the corrct grill! Do you happen to know whether the cabin temp. sensor is checked by a Lexia - i.e. if it's faulty or appears to be "sending" a high temperature reading? (I'd rather have this checked before looking at motors/spindles.)

I believe it's based on the C4 chassis. I had to drive a C4 Picasso for a couple of days and neither I nor my partner were impressed with the ride! (Looking for a vehicle in 1982 to cart us and a dog and half-a-dozen kids, she suggested I tried a CX Familiale and I was sold! Since then 2 BXs (1.6TRS and 1.9D) a Xantia 1.9D SX and now my (usually) trusty C5 1.6HDi VTR, I've got so used to "proper" Citroen suspension!)

Found the grill Rob so thanks. Now just the problem of taking out the glove box, trim etc. to get at the sensor. Incidentally, in the sunroof control/map reading lights "box" I found a twisted pair which ended with an unattached connector bound with sticky sponge rubber, located just above the grill. Any ideas......?

Hi Rob - thanks for the replies and advice. My C5 has a sunroof and there is a small grill on the control, next to the switch so I thought the sensor might be inside the unit. The Haynes manual tells me to prise out the lamp (easy - for a change) and undo the single screw which isn't apparent! However, there is a sort of plastic stud with a hole through the centre. I tried a small screwdriver but couldn't find a slot (perhaps there's a small torx or Allen key slot?). Now I'll look at the top of the dash to see if the sensor's there before I have another look at the sunroof. As you say, taking the dash out is a bit daunting, especially as my garage is full of junk and it keeps raining! (Just discovered that the passenger side side lamp is blown and, of course, there isn't room to take the bulb holder out without removing the battery AGAIN!!!) (I don't think those clever guys at Citroen want cars more than 10 years old on the road! There's a very smart looking BLACK Cactus in my local dealer's showroom........)

BSI reset done but still no heat! (Also the driver's front and rear windows control is playing up AGAIN!) However, I (think I) heard a whining noise when I pushed the Demist button on the A/C control and Cold air is blown only to the windscreen and then out of all orifices when Auto is pressed. I still can't locate the cabin temp sensor. I have a sunroof and, next to the control, there is a small grill. Is this where the sensor is housed? Oh! Just discovered how to take the sunroof control out (Haynes Manual 12.5 para 9) so I'll have a gander tomorrow.

Hi there - whilst waiting for the rain to stop (still hasn't) I started to wonder whether my cabin temp sensor might have failed. Tried Haynes but no mention of where it is housed. Does anybody know please?

Thanks Rob - I checked the pipe through a gap on the passenger side and it was rather hot (ouch!) so the matrix is being fed. I'll try a BSI reset tomorrow and hope for the best. Mike

"When I started my C5 this morning my heater wouldn't work, it flatly refused to provide any heat whatever setting I put it on. I have the dual climate controls and even when set to high it still only provided a nice blast of cold air." This has happened on my C5 (2005 1.6 HDi). Neither side provides hot air either from outside or when recycling cabin air (blower works fine). With ignition on but engine not running, I hear a click when I increase or reduce the temp settings (on both sides). Is there a "Master Flap" which controls ALL air flow through the heater matrix. Is it likely that both driver and passenger flap control motors have failed at the same time? Will I have to drop the dash to get at the driver and passenger flaps? (Could I have stopped it working when I changed my driver's window switch, without doing a full S/W reset??)

Timing chain slack (stretched) and/or hydraulic chain tensioner waiting for oil pressure to build ?

Hi there, what do you mean by "High engine rpm"? My 2005 1.6 HDi has now done over 107K miles. I very seldom exceed 3000rpm and have never had a "Eolys low" warning or topped up the tank. I've had the occasional DPF blocking and/or Depollution warning which disappears with a bit of harder driving (for me!) or cruising at 70 for a few miles. (The only time it wouldn't go away was when the filler cap switch didn't work as a wire had burnt out!) I think it's an excellent car (and the ride's nearly as good as my CX Familiale!).

Hi Paul, Have you seen my post ref: DS3 and THP engine? Mike.

Hello there, my Granddaughter has a DS3 Sport (165 BHP THP engine) which has suddenly lost power and makes a clacking noise. Checking the web it appears that this engine is fitted to many Peugeot, Citroen and Mini Cooper cars and the problem is that the timing chain stretches and tensioners either wear out of fail to operate correctly. Does anyone know whether Citroen has issued a recall for this problem (Peugeot and BMW have) or if the chain, sprockets and tensioners can be replaced fairly easily? Thanks - Mike.

Thanks John - I'll have to remember in about 25Kmiles! (and when I replace the rears!).

Oops ! Recently had a pair of 97W Michelins fitted to the front of my 1.6 HDi facelift. I don't feel any difference to the ride but then, Hampshire roads are pretty awful - full of depressions and potholes. Am I likely to be damaging anything by using these tyres?

"You could do with a copy of the Haynes manual for the C5." Bought one (£11.99) and a new fog lamp (£15.20) from NP Autoparts. Took about 5 mins to replace the lamp - which came fitted with a H11 bulb! Good value.

Once again, thanks Paul.

Hi Paul - the nearside front fog lamp on my 2005 facelift C5 is smashed so I tried (as you suggest) to go on the service.citroen web-site. It's in French, which is OK, but wouldn't allow me to register as an individual (particulier). Is there a UK or French site which will allow me to register as a "Club Member", so I can see how to replace the lamp or should I just say I'm a "professionel" ? (All I really want to know is how to get at the lamp fixings: from the front of the car? underneath? through the wheel arch? etc.) Thanks - Mike.

Thanks Paul. If at first you don't succeed.........!

Is this the method your talking about. It's a copy and paste from last year. There are several past topics on the forum where it's printed, but here it is again:- CORRECT REBOOT PROCEDURE FOR BSI Put the driver's window down, lift the bonnet and ensure all equipment is switched off. Ensure all doors are closed and remove key from the ignition. Wait for 3 minutes, disconnect the vehicle battery and wait 15 seconds. Reconnect the vehicle battery, wait a further 10 seconds (do not open doors.). Switch on the side lights through the driver's window. Switch on the ignition and check system's functionality. Hold lock button on key down for 10 seconds. Remove key open & close door test central locking system. Start the engine and complete the system's check. Reset the clock and date. Failure to follow this procedure could result in incorrect operation of many BSI related items. No - actually it was from people who'd tried raising and lowering windows up to 10 times to try to get them to operate correctly. However, I've found another "fix" on this site which involves removing fuses from the glove compartment (fuse 4 for passenger door, fuse 5 for driver's) so I'm going to try that. Gosh!! it seems to work. On my 2005 (facelift) C5 VTR 1.6HDi I removed fuse 5 (Does both front doors) waited a few secs and plugged it back in and, lo and behold, after doing the anti-pinch routine, I can control ALL windows from the driver's switches! Advice - read the owners manual to find which fuses are for which door.