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C6 Headlight washer jet |
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C6Dave
 
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    Member No: #1
Location: Northumberland |
Not as far as I'm aware, If the lights are on and you wash the screen, the headlights also get washed There is no manual setting to change it and I don't think there is one in the BSI settings either. |
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pclark
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 Member No: #3
Location: North Yorkshire |
I've noticed that if the washer fluid level is indicated low, the headlight washers do not operate, presumably to prioritise the remainder of the fluid for the windscreen. | ||
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ChrisHunter
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 Member No: #188
Location: Lancashire |
ours are fine, too ... last time we filled-up the reservoir we added screenwash whatever it is (ie: the proper stuff this time, rather than the Tesco's no-need to dilute we tried last year) & almost immediately weather-temperatures dropped well below zero, to -10degC, plus or minus a degree or two, depending on the day (-15degC was the worst) ... we chose our moments carefully when we used them (ie: escape-route available) and were really quite surprised to have absolutely no problem at all ... indeed, I was pretty sure Citroën must have included nozzle & pipe heaters in their spec' ! | ||
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Grumpytvr
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 Member No: #742
Location: Wiltshire |
Hi Folks, I've resurrected this thread following my head light washer issues tagged onto here: - Click Here - I checked the fuse in the engine bay and it was blown, so this was replaced. I've also had the pump out and checked it's operation with another voltage source and it works fine. I've plugged the car into Lexia and the fault codes are F998: Headlamp washer control (after I replaced the fuse) and B998: Headlamp washer control - Short circuit to:- (I presume earth). These have both now been cleared but the washers are still not working. The reservoir has been brimmed, so it's not that the level is too low. I'm also making sure the lights are on before operating the windscreen washers, so it's not that either. Just wondering if anyone else has had any similar problems? I'm guessing (as the fault code says) that there's a short in the system somewhere, does anyone know if there are any common areas where these cables could rub through / become damaged? Any pointers would be very much appreciated..... Cheers Tom |
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C6Dave
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Member No: #1
Location: Northumberland |
The washer jets are simply pushed out bt water pressure. It sounds like your pump has failed. Ignore the voltage check, others have tested the same way, got the same result and eventually had to change the pump. If it's not producing enough flow/pressure, the jets just won't pop up. BTW you need to make sure that the wash fluid is the correct winter strength as they can freeze and pop out of the bumper all on their own. The best I have found was from Lidl: - Click Here - |
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Grumpytvr
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Member No: #742
Location: Wiltshire |
Hi C6Dave Thanks for your post I've had it all apart again today and responding to your points: C6Dave wrote ... The washer jets are simply pushed out bt water pressure. It sounds like your pump has failed. Ignore the voltage check, others have tested the same way, got the same result and eventually had to change the pump. If it's not producing enough flow/pressure, the jets just won't pop up. I have wired the headlight washer pump directly to a spare battery and the headlight washers work without any problems. The pump operates and pushes out the washers, so the mechanisms are working fine. I have checked the output to the pump from the plug connector and when the washer stalk is operated nothing happens (in truth it reads a constant 12 volts, although clearly not enough to operate the pump). I tested the windscreen washer connector and this reads 0v under normal circumstances and 12v when the windscreen washer stalk is operated (this is what I'd also expect the headlight washer to do). You're right, I suspect the pump is failing / has failed at some point causing the fuse to blow. My guess would be at some point it has jammed or been frozen up when it has been operated. It's likely I'll replace this item as a matter of course. The remaining problem is that not only has the fuse blown, but it appears that a relay in the controller unit (or the controller unit itself) has also stopped working. I've no idea where the relay is, but I've a sneaking suspicion that it may be one of the little black boxes in the potted printed circuit board behind the fuses. It doesn't look like the kind of thing that can be taken out and fixed that easily. You clearly have much, much more Citroen knowledge and experience than me (This is my first Citroen), perhaps you might be able to advise / confirm where the controller is and whether they are repairable or whether its a replacement job (I expect the associated expense will not be pleasant if it's a replacement job!) C6Dave wrote ... BTW you need to make sure that the wash fluid is the correct winter strength as they can freeze and pop out of the bumper all on their own. The best I have found was from Lidl: - Click Here - The stuff from Lidl is brilliant. I've been using it for several years as there's a branch I call into on the way home from work quite often. As I've said previously, I don't know whether the headlamp washers have ever worked since I've had the car! I only noticed they weren't when I programmed the tyre pressure sensor and cleared all the faults off the ECU with Lexia. On the positive side I've got 6 months to sort it out before the next MOT. Obviously the sooner the better though. The past week hasn't been great on the car front, the electric widows on my TVR also packed up again! So some further fault finding and fixing required there too... Serves me right I suppose for owning a glass fibre car and Gallic supercomputer for an every day car! Any further help / assistance / experience / knowledge gratefully received. (Well on the Citroen problem anyway) Cheers Tom |
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C6Dave
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Member No: #1
Location: Northumberland |
You did test with the engine running and headlamps on as the headlamp washers only operate with headlights (dipped or main) illuminated | ||
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Grumpytvr
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Member No: #742
Location: Wiltshire |
C6Dave wrote ... You did test with the engine running and headlamps on as the headlamp washers only operate with headlights (dipped or main) illuminated Yes, engine running, headlights on and tried both dipped and main beam. I've had a quick look at the wiring diagram for fuse box psf1 in the engine compartment and the head lamp washer is protected by fuse F4 (this was the one that was blown originally and I replaced). The fuse is next to R11, which is the relay I think there may be a problem with. Wondering whether the next option is to try replacing the fuse box with another to see whether it solves the problem? Don't know whether it will require reprogramming in Lexia..... Much gnashing of teeth! |
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Trainman
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 Member No: #86
Location: Penwortham |
I had a similar issue with a C5 facelift, I couldn't get the washer to work until the car was driving down the road............ just a thought.. 
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Grumpytvr
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Member No: #742
Location: Wiltshire |
Hi Steve Thanks for the post. I tried this on the way home this evening and no luck - the headlights were dry when I got out and checked them. I've plugged Lexia in again this evening and its still registering a permanent fault on headlamp wash control (F998). The fault is in the BSM unit (under the bonnet) according to Lexia. Daft question I know, but I don't suppose anyone has a spare BSM unit that I could borrow to see if it's the unit itself or whether it could be a problem further back in the system? Any further help appreciated. Thanks Tom |
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C6Dave
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Member No: #1
Location: Northumberland |
If you mean the 'engine bay fusebox' has a fault then it's unlikely anyone has a spare (even more so with a 2.2) and it's not a cheap replacement. There was an issue with the fusebox on a few early cars (similarly with the C4 and C4GP) with corrosion on terminal F1 |
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Grumpytvr
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Member No: #742
Location: Wiltshire |
Thanks for the info on possible corroded terminals. I'll look into it further over the weekend. I've got nothing to lose by taking the fuse box out and having a poke about. I popped into a local Citroen dealer today and discovered that a replacement fuse box, whilst not cheap, was not as horrendously expensive as I was expecting (it was around £165) and does not require programming. - So worst case is to buy a replacement. I did however draw the line at a replacement / spare key for my locking wheel bolts (mine is damaged but still works just about). They wanted £50 for it! A whole new set of locking wheel bolts with 2 new keys was £40. Where's the logic in that?!? Will ponder the fuse box issue a tad further before deciding what to do. Don't suppose anyone knows of any good Citroen specialist in the Wiltshire area? Whilst I'm pretty sure I know where the problem is, it would be worth getting a second opinion as I'm not 100%.... |
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C6Dave
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Member No: #1
Location: Northumberland |
Go to: - Click Here - put your postcode in and search for an Independent. | ||
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smihaialex
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  Member No: #1031
Location: Bucharest |
Hi guys, I'm glad I stumbled upon this thread... I was a bit worried. You see, even though I use a winter windscreen washer liquid (good for up to -20 deg. C), when returning to the car after a couple of days of minus temperatures when I had only used my work 5 Series, I immediately noticed that the headlight jet enclosures seemed to have popped out only about half a centimetre or so... and I'm sure that they weren't like that when I had left the car... And they didn't work either... After a few miles of driving around the city they had returned to the fully closed position, but they still didn't work... That was yesterday. Today, they still won't work, but at least they haven't popped out anymore... I wonder if Citroën possibly made it so that they only work when temperatures are a over 3 deg. C or something like that?!? |
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Hattershaun
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 Member No: #320
Location: Bedfordshire, UK |
Maybe the water in the washer jets had frozen, expanding and therefore pushing out the front covers. Just a thought. |
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