Smart fortwo (C354) Solenoid Valve Idle Issue
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- Опубліковано 8 вер 2024
- On turbo-engined Smarts rough or bad idling seems to be quite a common thing and can often be traced back to a faulty camshaft solenoid valve. In my case this fault manifested itself in the erratic idle shown in this video, which happened on almost every cold start. (Ignore the high idle at the end - I think that's an anti-stall behaviour after the last particular bad dip in revs!)
Swapping the solenoid valve out for a new one solved the problem immediately, so I'd suggest this is your first port of call for any weird idling issues on your turbo Smart 453.
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Потерял очень много времени из-за этого видео. Хорошо, что клапан не купил новый. Симптомы 1 в 1 как у автора. Но проблема другая в корне. Дымом подсосов не видно. Датчики и соленоиды исправны. Пробит клапан в маслоотделителе под коллектором. Его сверху не видно, что и затруднило поиск. А фазовращатель вообще не учавствует в ХХ, разве, что он открытый заклинит. Это легко проверить в потоке данных, там четко видно угол впускного РВ и на ХХ он = 0, максимальный угол 51 градус.
Здравей, можеш ли да ми кажеш къде точно се намира този клапан, ако е възможно ще се радвам и на снимка. Благодаря предварително.
Thank you for the video and information I have a smart for two 453 and I've got the same problem but how did you remove the cam solenoid I tried pulling it out and couldn't get it out at all
Mine was relatively easy to remove but I have read they can be quite stiff, or sometimes come out in two pieces - the corrosion causing the idle issue is also what holds it in. You could try jiggling it from side to side as you pull to see if that frees it up? There's more info at this link regarding the solenoid, though it requires a paid membership to view (not my website but I've found it useful in the past): www.evilution.co.uk/mod/453-rough-idle.htm
Thank you for your video! Im experiencing the same problems with my smart. Was this an easy operation? Where is the solenoid valve located?
Surprisingly easy considering the cramped engine bay :) The start of this guide shows where you'll find it: www.evilution.co.uk/mod/453-rough-idle.htm - it's held in by one bolt which is easy enough to reach with a socket and extension. Then it just pulls out, with a little bit of wiggling!
@@methinksperchance Thank you very much for your answer and the guide!
Just one question though, isnt that the crankshaft sensor? I thought this was the location of the camshaft sensor: imgur.com/a/zTvcdYW . Just a picture of the engine from google, not mine. Im probably wrong, just double checking. Thanks
@@mikaeleb2979 I think I've read that the same issue _can_ be caused my camshaft/crankshaft sensor issues, but the overwhelming majority come from a faulty solenoid valve as it's a known weak link. Here's a pic of the solenoid I removed (my website) methinksperchance.net/cars/camshaft-solenoid-valve-replacement/ - as you can see it's definitely designed to manipulate oil flow rather than just being a sensor :) Hope that helps!
@@methinksperchance Thank you very much, super helpfull and much appreciated! Ive just ordered the renault part and I'll start from there. Hopefully that solves it :)
@@mikaeleb2979 No problem, hope it sorts things out for you! :)
Can I ask where you managed to find the part from? Difficult to find online.
I got mine via eBay as the solenoid is shared with the same generation Renault Twingo - there's some debate over whether Smart improved and updated their version of the solenoid (because there are two Smart part numbers for the same item), but I'm also not sure if that solved the problem so I just bought the Renault version as it was easiest to find, and the cheapest! This is where I got mine from: www.ebay.co.uk/itm/164257357829 (listed as "GENUINE RENAULT TWINGO CAMSHAFT SENSOR").
@@methinksperchance wow I really appreciate the help, thanks so much for the link!
Can someone put the part numbers up please for smart and Renault equivalent
I used Renault 237964892R - there’s a step-by-step guide (and I think the Smart P/N too) on replacing the sensor at the Evilution website, which I would recommend as a resource for Smart maintenance (no affiliation, it’s just a good one-stop-shop for most issues on most generations of Smart!): www.evilution.co.uk/index.php?mod=1427
Thank you!
@@methinksperchancedo you have a link to where to buy? I can’t find it anywhere
@@stephencourtney324 I bought mine on eBay using the the part number as the search, looks like there's quite a few on there at the mo 👍
Hi I have a smart 453 2016 with around 8k miles on the clock. It is the non turbo version. I used to own a previous gen smart but find this 453 gen to start rough and idle rough with a lot of vibration in the seat. I’ve been to an independent dealer (very good one) and they reassured me it was normal. The actual start of the car is fairly rough sometimes and the idle. If I rev it up above 1k, I stop feeling the vibration of the engine through the seat and it feels much smoother. I remove my foot of the accelerator and it goes back to being rough. I guess my question is, is this normal you think and do you experience similar symptoms? Many thanks!
It's hard to diagnose via YT comments but I'd say if your 453 feels more rough and has more vibration at idle than your previous Smart did then that's not "normal" - I certainly think the 453 is quite refined in general (my wife's had the diesel 453 and while it had a *very* 3 cylinder "chug-chug" diesel idle even that didn't shake the car or vibrate harshly). I think garages in general (good and bad!) can be a bit dismissive of Smarts - they're slow, noisy, unrefined, break down a lot, etc. - just because they're so different, so if you can find a Smart specialist - or even grab a quick test drive in another non-turbo - you'll at least be able to figure out if it really is "normal" or not, though as I say I'm not convinced from your description. Hope that helps!