s40 sometimes wont start

sl1981uk · Sep 2nd, 2009, 11:31

Morning!

I have a 55 plate 2.0 S40 Diesel well maintained but yesterday out the blue it wouldn't start id just driven it home for about 30 miles stopped for twenty minutes engine off come back outside to drive again and it wouldnt start it was trying to turn over if that makes sense. i left it for about 5 minutes then it started ok...

Any ideas?

walmayne · Oct 7th, 2009, 07:32

having the same problem! would be happy for any ideas as i have alredy replaced cam sensor and egr valve at considerable cost! help!!!!

bombdoctor · Oct 7th, 2009, 07:53

I'm having the same problem on my 08 s40?
It's as if the electrical system is switching itself off, then re setting after a few minutes....

It's only started in the past week or so..........

Doors won't unlock, engine won't start...after a few minutes of being off , everything returns to normal....

Does this same thing happen with yours as well....

sl1981uk · Oct 7th, 2009, 11:50

Thats different to mine and walmaynes!!! Same problem because same car haha! Think were running out of ideas! Does anyone have a clue there must be someone on here who knows about diesel volvo engines who have had the same problem!

First person to suggest the answer wins a prize!!

Welton · Oct 7th, 2009, 13:27

I don't know the answer, but when you say "it won't start" do you mean it turns-over but won't start or do you get no response from the key with a message up saying "try again" (I've had this a few times).

alfiembra · Oct 7th, 2009, 13:50

I'd suspect the ignition switch, like Welton says are their any messages on the dash, my switch went with a "key error" message "try again". Car was pretty much dead and couldn't be moved or started, AA man jiggled the steering wheel around for a few minutes and it eventually started. Replaced at the dealers FOC under warranty.

Alan

Welton · Oct 7th, 2009, 14:37

Quote:

Originally Posted by alfiembra

I'd suspect the ignition switch, like Welton says are their any messages on the dash, my switch went with a "key error" message "try again". Car was pretty much dead and couldn't be moved or started, AA man jiggled the steering wheel around for a few minutes and it eventually started. Replaced at the dealers FOC under warranty.

Alan

Oo-er, I've just had a quick snoop around on the web and apparently the steering lock mechanism can fail at 2-4 years old! the switch AND column gets replaced at huge expense (£800.00?) but Volvo were covering some out of warrenty jobs because it was such a common fault and the original parts were 'inferior'.

sl1981uk · Oct 7th, 2009, 16:51

No reply to mine not even with the offer of a prize.

Mine turnsover but doesnt fire! Come on someone must know out there!

bombdoctor · Oct 13th, 2009, 11:09

Mine has the keyless ignition.......I have found though, that if I take the house key off and the Tesco clubcard off as well it cures the problem.

I was speaking to someone purely by chance, they said that the Magnetic bit on the tills will interfere with the immobiliser on the key fob..hence shutting the car down when you go to start it!!!!!!!

Don't know how true this is..but it appears to be working so far....

Guru · Oct 13th, 2009, 11:56

Camshaft position sensor??

Sep 2nd, 2009, 11:31	#1
sl1981uk New Member Last Online: Oct 7th, 2009 16:51 Join Date: Sep 2009 Location: unknown	s40 sometimes wont start Morning! I have a 55 plate 2.0 S40 Diesel well maintained but yesterday out the blue it wouldn't start id just driven it home for about 30 miles stopped for twenty minutes engine off come back outside to drive again and it wouldnt start it was trying to turn over if that makes sense. i left it for about 5 minutes then it started ok... Any ideas?

Oct 7th, 2009, 13:27	#5
Welton Premier Member Last Online: Sep 14th, 2021 17:03 Join Date: Feb 2009 Location: Market Harborough	I don't know the answer, but when you say "it won't start" do you mean it turns-over but won't start or do you get no response from the key with a message up saying "try again" (I've had this a few times). __________________ 2005 S40 T5 SE - Manual. Bilstein B4's. (For Sale) 2010 Citroen C4 1.6 HDi (bizarre Gearbox model). 2010 Renault Twingo (refreshingly simple) 2018 Infiniti Q30 1.6T Business Executive (what's this button do?)

Oct 13th, 2009, 11:56	#10
Guru Premier Member Last Online: Oct 25th, 2023 07:46 Join Date: Feb 2009 Location: Between chair and keyboard	Camshaft position sensor?? __________________ Volvo S40 2.0D momentum \| 100kw/136bph \| 2005 \| Euro III \| 49mpg \| Electric silver

Oct 7th, 2009, 07:32	#2
walmayne New Member Last Online: Oct 28th, 2009 09:44 Join Date: Oct 2009 Location: southport	having the same problem! would be happy for any ideas as i have alredy replaced cam sensor and egr valve at considerable cost! help!!!!

Oct 7th, 2009, 07:53	#3
bombdoctor New Member Last Online: Oct 6th, 2013 03:28 Join Date: Oct 2009 Location: gwent	I'm having the same problem on my 08 s40? It's as if the electrical system is switching itself off, then re setting after a few minutes.... It's only started in the past week or so.......... Doors won't unlock, engine won't start...after a few minutes of being off , everything returns to normal.... Does this same thing happen with yours as well....

Oct 7th, 2009, 11:50	#4
sl1981uk New Member Last Online: Oct 7th, 2009 16:51 Join Date: Sep 2009 Location: unknown	Thats different to mine and walmaynes!!! Same problem because same car haha! Think were running out of ideas! Does anyone have a clue there must be someone on here who knows about diesel volvo engines who have had the same problem! First person to suggest the answer wins a prize!!

Oct 7th, 2009, 13:50	#6
alfiembra Member Last Online: Sep 3rd, 2010 15:02 Join Date: Aug 2008 Location: Edinburgh	I'd suspect the ignition switch, like Welton says are their any messages on the dash, my switch went with a "key error" message "try again". Car was pretty much dead and couldn't be moved or started, AA man jiggled the steering wheel around for a few minutes and it eventually started. Replaced at the dealers FOC under warranty. Alan

Oct 7th, 2009, 16:51	#8
sl1981uk New Member Last Online: Oct 7th, 2009 16:51 Join Date: Sep 2009 Location: unknown	No reply to mine not even with the offer of a prize. Mine turnsover but doesnt fire! Come on someone must know out there!

Oct 13th, 2009, 11:09	#9
bombdoctor New Member Last Online: Oct 6th, 2013 03:28 Join Date: Oct 2009 Location: gwent	Mine has the keyless ignition.......I have found though, that if I take the house key off and the Tesco clubcard off as well it cures the problem. I was speaking to someone purely by chance, they said that the Magnetic bit on the tills will interfere with the immobiliser on the key fob..hence shutting the car down when you go to start it!!!!!!! Don't know how true this is..but it appears to be working so far....

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