chriswoodbmw

hey, right ill keep it short and sweet so it doesnt confuse anyone, was having a problem with idle, needle doesnt jump around or anything,just idle abit ruff sometimes, when first experiencing this it was only after the car HAD warmed up it had the idle problem. changed oil and filter to bmw 5w-30, changed air filter, changed spark plugs, that improved idle alot, then yesterday, checkd ccv and pipes, all fine. its an n42, so pipes are solid plastic anyway not the rubber hoses, put it on diagnostics, cylinder 4 at tickover was reading higher than rest, so changed the precat o2/lambda sensor, (it is linked to cylinder 1 + 4), took it for a spin to let car ecu relearn... after the car had properly heated up no problems!! hurrray, 30 miles of idling fine, went shopping, all cooled down and the !Removed! idle thing is back but only untill car is warmed up, then nothing? could that be out to do with the 2nd 02 sensor? after the cat? the readings on everything else are absolutley fine, no codes or out, just that reading on cylinder 4.

ha! no way, shed buy a 7 seater and use that as a viable reason to have 4 more kids.

Bmp Ccv possible? Or one of hosez from that, ##### to get to under the manifold.

Hi guys, u prob read last post on idle, Basically idle was ruff, only sometimes on tickover, changed the oil to bmw 5w-30 and new filter, that made the tick over 10x's better! And when ruff virtually unoticable and less frequent when it did it. Was told oil looked really thick and wel over due changing, Now everynow n again wen i get that ruff tickover its tirtually unoticable but i can stil tel its there, obveously an oil problem so would you suggest doing a engine flush then another new oil and filter change, just to remove last bit of build up or any other ideas? Cheers

Stupid idle niggle.

Hey,and welcome,

Hey, ryt took it to garage yesterday, change oil filter and put bmw 5w-30 fully synth in her, and since last night no idle issues at all! hope i havnt jynxd it but he said the oil filter was ruined and the oil was abit sludgy and was prob overdue changing, it had been done at bmws recomenmded intervals which clearly are not enoufh, i think ill do once a year for definate.-

Hey, sure someof u have seen it but thought u might wana sticky it to save ppl googling for 25mins, (like me) Www.realoem.com/bmw

Cool, i bought a can yesterday to clean my non existant icv.lol. at least itll go to use. Shud be quite easy to remove it on this then if its on top. Thanks guys.

Thats on the valvetronic enginne right? I believe the t.b is dwn near the icv on non valvetronics right? I think ill ha e a bash at cleaning that tomoro nyt, carb cleaner to clean it?

Nope, used the proper crc maf cleaner spray, i was gona do throttle body wen i did icv. As this engine doesnt hav an icv didnt get to the t.b, how do i get to that on thks engine.

cool. ill see if i can get my hand behine there then, everyone has probs with one above exhaust which i dont think u can get to, will have to c if i can price that black plastic trim off.

would that not kick up some sorta code to diagnostics? is it a pain in the ##### to change that sensor then? wer is it ?

i have no ideas wether it has egr? ive just googled it to find out what the hell that is! results coming back are all to do with diesels, mines a 2003 318 ci, petrol. im glad of some info really, e46 fanatics never even replied. i had a full diagnostics done on the car when i bought it at a bmw specialist and nothing came back at all, he said it was spotless really, any idea how i can tell if its got an egr? and hopw to go about cleaning it? doubting fuel filter now then, no probs starting at all, did 80 miles yesterday and my petrol miles range gained 45 miles so dont think ive got a problem with mpg either. EDIT- just found out egr is diesel models only! could it be the daler ig ot it from put some really cheap poo oil in, New oil and filteR?

Hey, right, ive done loads of googling on this but no luck, maybe 2 out of 5 tyms wen i come to a stop the car starts to shudder, depending on how long im stood for, over 30secnds and it sometimes smooths out again.the revs dont move at all, they hold steady all the time,origionally i changed plugs,then i thought it myt b air flow related, so changed filter, cleaned maf.went to clean icv and the valvetronic enginue doesnt ha e an icv, sooo were next? Im startin to think as the revs hold steady all time maybe its fuel related? Maybe the fuel filters becoming clogged? Cars only do e 38000, the guy at bmw said i shudnt worry coz thers no codes coming up he said its just one of them things, one thing he did say was readings from cylinder 1 were slightly higher than rest, but he sed cud be the coil going,coil on cylinder 4went week before.cud it be a dogy coil? Its just annoying me. Lol. P.s the shudders not bone ratling, just abit like wen ur in a diesel car.