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  • FIRST POST
    • user1168934
    • By user1168934 25th Aug 17, 12:02 PM
    • 254Posts
    • 112Thanks
    user1168934
    Rough idle only when warm - timing chain changed recently
    • #1
    • 25th Aug 17, 12:02 PM
    Rough idle only when warm - timing chain changed recently 25th Aug 17 at 12:02 PM
    I have recently bought a 318i 2006 which just had a timing chain replacement by the previous owner. The car starts fine and drives lovely when cold but after a couple of minutes when engines gets a bit warm the idle becomes erratic. It drives fine but idle gets rough, the car starts shaking as if it is going to cut out (and sometimes it actually does). Sometimes when this happens it seems that the car tries to adjust by increasing the revs to 1500+. It also keeps going into limp mode. A couple of days ago on the highway the limpmode light came on and the car's speed was reduced. The check engine light came on too.

    I have bought the OBD bluetooth connector and the error codes are P1050, P1062 and P111a. I also took some screenshots of the data today when my car was rough idling and I noticed the timing was fluctuating a lot when the car was rough idling.

    Is this a timing issue? Any ideas how to fix it?
    Any other readings I can gather which might help?
    Please help me if you can.
    Save 12k in 2015: £12690.30/£12000 (105.75%) - Number: 193
    Save 12k in 2016: £0.0/£18000 (0.0%) so far .... - Number: 130
Page 1
    • thescouselander
    • By thescouselander 25th Aug 17, 12:25 PM
    • 5,283 Posts
    • 4,818 Thanks
    thescouselander
    • #2
    • 25th Aug 17, 12:25 PM
    • #2
    • 25th Aug 17, 12:25 PM
    Bit of an educated guess but I'd suggest looking at the MAF (air flow) sensor. Easy to test - unplug it and see if the problem goes away. If it does then that's the culprit.

    Also check the camshaft position sensor - might just be that it's not plugged in properly if it was disconnected during the timing chain work.
    Last edited by thescouselander; 25-08-2017 at 12:29 PM.
    • facade
    • By facade 25th Aug 17, 12:26 PM
    • 2,905 Posts
    • 1,483 Thanks
    facade
    • #3
    • 25th Aug 17, 12:26 PM
    • #3
    • 25th Aug 17, 12:26 PM
    Type p1050 into google.

    Loads of pages on it, something to do with the variable cam timing system.

    Plenty of things to check that don't cost anything

    e.g. http://www.bmwforums.info/bmw-3-series-forum/1424-limp-mode.html
    I want to go back to The Olden Days, when every single thing that I can think of was better.....

    (except air quality and Medical Science )
    • user1168934
    • By user1168934 25th Aug 17, 1:45 PM
    • 254 Posts
    • 112 Thanks
    user1168934
    • #4
    • 25th Aug 17, 1:45 PM
    • #4
    • 25th Aug 17, 1:45 PM
    Thanks guys I will try the MAF sensor thing over the weekend and will go through the post mentioned above and try those too (the page is not loading correctly for some reason right now).

    I did do a fair bit of googling but generally the advice was to throw parts at it until the problem goes away which would be very costly for me.

    I will post an update after I have done the checks. In the mean time please let me know if you have any other ideas.
    Save 12k in 2015: £12690.30/£12000 (105.75%) - Number: 193
    Save 12k in 2016: £0.0/£18000 (0.0%) so far .... - Number: 130
    • thescouselander
    • By thescouselander 25th Aug 17, 4:09 PM
    • 5,283 Posts
    • 4,818 Thanks
    thescouselander
    • #5
    • 25th Aug 17, 4:09 PM
    • #5
    • 25th Aug 17, 4:09 PM
    The link facade posted has some good advice. On some engines BMW controls the throttle by altering valve lift rather than using a butterfly valve. There is a servo motor associated with this mechanism so giving it a few gaps might help if there's a connection breaking down.
    Last edited by thescouselander; 25-08-2017 at 4:13 PM.
    • angrycrow
    • By angrycrow 25th Aug 17, 6:14 PM
    • 391 Posts
    • 302 Thanks
    angrycrow
    • #6
    • 25th Aug 17, 6:14 PM
    • #6
    • 25th Aug 17, 6:14 PM
    if its a BMW valvetronic engine they have two solenoids that control the cam timing advance which can fail causing timing issues. Mechanically they are very easy to change, undo one bolt disconnect plug and withdraw from the engine retrieving the o ring but I suspect you have already seen this info on another site you posted on (pelican).
    • user1168934
    • By user1168934 26th Aug 17, 5:17 PM
    • 254 Posts
    • 112 Thanks
    user1168934
    • #7
    • 26th Aug 17, 5:17 PM
    • #7
    • 26th Aug 17, 5:17 PM
    I am trying to buy compressed air duster to clean the vanos solenoid. There is one in Wilko but it says its highly flammable. Is it ok to use for cleaning solenoid?

    Here is the link in case:
    http://www.wilko.com/computer-cleaning-kits/fellows-air-duster-spray-350ml/invt/0332276
    Save 12k in 2015: £12690.30/£12000 (105.75%) - Number: 193
    Save 12k in 2016: £0.0/£18000 (0.0%) so far .... - Number: 130
    • facade
    • By facade 26th Aug 17, 7:32 PM
    • 2,905 Posts
    • 1,483 Thanks
    facade
    • #8
    • 26th Aug 17, 7:32 PM
    • #8
    • 26th Aug 17, 7:32 PM
    That is just a can of liquid butane, as used in lighters. Doubt if it will hurt anything, but use it outside.
    I want to go back to The Olden Days, when every single thing that I can think of was better.....

    (except air quality and Medical Science )
    • reddwarf2002
    • By reddwarf2002 26th Aug 17, 11:38 PM
    • 436 Posts
    • 104 Thanks
    reddwarf2002
    • #9
    • 26th Aug 17, 11:38 PM
    • #9
    • 26th Aug 17, 11:38 PM
    Just changed a Vanos timing solenoid valve on a Peugeot 308 for a friend (it has a BMW engine).

    It had the fault codes P1015, P1062, P1067. It didn't have the problems at idle as the OP but from all the searching I had done previously the solenoid seemed to be a very common issue.
    • tedted
    • By tedted 27th Aug 17, 12:10 PM
    • 132 Posts
    • 45 Thanks
    tedted
    what 308 is that then?
    • facade
    • By facade 27th Aug 17, 3:28 PM
    • 2,905 Posts
    • 1,483 Thanks
    facade
    Post 2007 I'd have thought.

    BMW had some input into the valvegear (which goes wrong) and let peugeot design the rest of the engine.

    So BMW and Peugeot used the same engine till about 2016.
    I want to go back to The Olden Days, when every single thing that I can think of was better.....

    (except air quality and Medical Science )
    • reddwarf2002
    • By reddwarf2002 27th Aug 17, 3:34 PM
    • 436 Posts
    • 104 Thanks
    reddwarf2002
    what 308 is that then?
    Originally posted by tedted
    2009 1.4 model.
    • user1168934
    • By user1168934 29th Aug 17, 1:25 AM
    • 254 Posts
    • 112 Thanks
    user1168934
    Just to give you an update folks ... in addition to the idle issues I also found an oil leak which was basically the last straw. I did not want to spend more money on it and decided to cut my losses - sold as spares/repair :-(
    Thanks for trying to help me.
    Save 12k in 2015: £12690.30/£12000 (105.75%) - Number: 193
    Save 12k in 2016: £0.0/£18000 (0.0%) so far .... - Number: 130
    • reddwarf2002
    • By reddwarf2002 12th Sep 17, 9:11 PM
    • 436 Posts
    • 104 Thanks
    reddwarf2002
    Just changed a Vanos timing solenoid valve on a Peugeot 308 for a friend (it has a BMW engine).

    It had the fault codes P1015, P1062, P1067. It didn't have the problems at idle as the OP but from all the searching I had done previously the solenoid seemed to be a very common issue.
    Originally posted by reddwarf2002
    Just to update and help others coming through Google doing diagnostics, changing the solenoid did not cure those fault codes. It's possibly the motor actuator or wiring issues now...
    • Strider590
    • By Strider590 12th Sep 17, 10:47 PM
    • 11,622 Posts
    • 6,529 Thanks
    Strider590
    Given the cost of doing a timing chain, there's not a chance in hell i'd have one changed before selling a car.
    “I may not agree with you, but I will defend to the death your right to make an a** of yourself.”

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