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Forum: 451 fortwo - Technical Queries

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  1. Hissing sound after driving

    Hi all, I went to test drive a smart for two 451 MHD 2010. After test driving, I noticed a hissing sound and water dripping from the bottom of the car. The hissing sounded like air being released from a tyre. My suspicion is that it is related to the air conditioning and is completely normal. But,...

    Started by gt86, 2nd July 2018 16:40
    • Replies: 3
    • Views: 177
    3rd July 2018 13:00 Go to last post
  2. What exactly are these?

    So just what is a fuel filter, combination filter and Poly-V-belt? http://i66.tinypic.com/25hctoh.jpg

    Started by nlel, 8th November 2017 13:02
    4 Pages
    1 2 3 ... 4
    • Replies: 39
    • Views: 3,950
    3rd July 2018 12:58 Go to last post
  3. Removing door mirror

    I need to remove the door mirror from my spare Smart for a mate tomorrow morning. It is parked in a field. Since having a heart attack I can't life my tool box. Can someone tell me what tools I need to get it off please, save me 20 trips from the cellar to the car emptying my tool box into the...

    Started by Mjolinor, 27th June 2018 19:14
    • Replies: 6
    • Views: 158
    28th June 2018 20:54 Go to last post
  4. Continental Eco Contact 5 Tyres

    Looking to buy some Continental Eco Contact 5 Tyres sometime in the future, they don't seem to make then in sizes 155/60/15 front and 175/55/15 rear which are what I currently have fitted to my Smart i.e. the Continental Eco Contact 3. What would be the next best size tyres I could fit?

    Started by nlel, 16th April 2017 11:37
    5 Pages
    1 2 3 ... 5
    • Replies: 49
    • Views: 3,346
    22nd June 2018 06:17 Go to last post
  5. Driveshaft oil seal size

    Does anyone know the dimensions of the driveshaft oil seals on 451. Regards

    Started by macbut999, 20th June 2018 10:36
    • Replies: 2
    • Views: 121
    20th June 2018 22:52 Go to last post
  6. Stutter (misfire) on a cdi

    Hi, have an annoying fault that has just started on our 2009 451 Passion CDI. Under quick acceleration the engine seems to stutter (I can only describe it as very similar to a “misfire” on a petrol car). It will run fine around the town fine but get it up to 60mph and it does the stutter (misfire)...

    Started by gaza9876, 17th June 2018 08:33
    • Replies: 3
    • Views: 142
    17th June 2018 16:15 Go to last post
  7. Just learned something new ...

    I've only had the car 2 years. I've never even noticed this clip before :icon_redf ..... 8th picture down shows a clip on the corner of the carpet. It's not very effective in use https://haynes.com/en-gb/car-manuals/smart/fourtwo/2007-2012/on-demand/10mhd-petrol/opening-bonnet

    Started by EmilysDad, 4th June 2018 17:02
    2 Pages
    1 2
    • Replies: 13
    • Views: 497
    5th June 2018 15:03 Go to last post
  8. Tyre Pressures

    Hi Can somebody tell me the correct front and rear tyre pressures for a 2007-2014 451 model Smart Fortwo Passion Coupe Thank You

    Started by nlel, 5th June 2015 17:24
    3 Pages
    1 2 3
    • Replies: 29
    • Views: 12,666
    23rd May 2018 13:44 Go to last post
  9. Pre cursor of things to come?

    Not had any problems at all with this car in nearly 2 years. (84bhp turbo) Drove home from work tonight ..... 23 miles .... with no problems at all. Sometimes in auto & other times with flappy paddles. Just as I was about to pull onto my drive it juddered & stalled (can't tell you whether in auto...

    Started by EmilysDad, 20th May 2018 21:04
    2 Pages
    1 2
    • Replies: 10
    • Views: 508
    22nd May 2018 15:49 Go to last post
  10. Seized front brake caliper - or is it?

    Been a while since I've needed a good post. Just tried to drive my Smart to Inverness (469 miles) as you do, driver's side front caliper stuck on about 70 miles in to the journey. Started with a high pitched intermittent squeal (I initially thought it was the heater fan - but it wasn't. I wish it...

    Started by nomen usoris, 8th April 2018 18:58
    2 Pages
    1 2
    • Replies: 10
    • Views: 887
    28th April 2018 18:52 Go to last post
  11. Servicing Advise

    At my last service I had the following done... http://i66.tinypic.com/25hctoh.jpg I'm now on 17,700 or so mileage, what should I have done at the next service which will be in Jan/Feb 2018. Spark Plugs? Air Filter? I should probably have the brake fluid changed as it will be 2 years since...

    Started by nlel, 12th June 2017 12:54
    14 Pages
    1 2 3 ... 14
    • Replies: 134
    • Views: 9,263
    25th April 2018 12:45 Go to last post
  12. Help with P2A00 Error

    Hello, Hope someone can help. My wife has only had her CDI Smart a short while and the Engine Management Light came one today. I have an OBDII Scanner and Torque Pro, and the code I have is "P2A00 Powertrain" "O2 Sensor Circuit Range/Performance Bank 1 Sensor 1" I have done some Dr....

    Started by matyb2k, 22nd April 2018 22:22
    heater, p2a00, sensor
    • Replies: 7
    • Views: 445
    24th April 2018 06:44 Go to last post
  13. 451 aftermarket exhaust

    Hi, I need to replace the exhaust on my 07 1.0 84hp Euro 4 in the near future. I've seen that quite a few online retailers list a BM91590H as a replacement for less than half the price of a genuine Smart exhaust. It does look quite different, more like a "normal" exhaust. By "normal" I mean...

    Started by mikeb40, 15th April 2018 09:18
    • Replies: 2
    • Views: 400
    15th April 2018 13:57 Go to last post
  14. Identifying a noise

    For a few weeks my 09 Smart Passion has developed a slight noise. When I start the engine & drive off, I get this VERY slight & quiet "tap, tap" noise but it lasts for no longer than 5 seconds & it doesn't happen again whilst driving even if I stop with the stop-start function running. It is...

    Started by mareag, 1st April 2018 22:10
    • Replies: 8
    • Views: 645
    2nd April 2018 20:43 Go to last post
  15. Found this in boot

    Whilst clearing out/vacuuming my boot recently I found this item. Just wondering if it is from my 2009 Smart Passion ForTwo or just something that has randomly found it's way in there. I have looked in the handbook but obviously there are so many pages so thought I would ask on here. I hope the...

    Started by mareag, 31st March 2018 21:36
    • Replies: 5
    • Views: 513
    1st April 2018 21:05 Go to last post
  16. 451 Side Skirts

    I noticed the side skirts on the left side of the vehicle appear to be a bit loose... http://i64.tinypic.com/2r7vez4.jpg Is this likely to have happened in an accident or where someone has removed them in the past and not put them back on snugly?

    Started by nlel, 18th March 2018 09:09
    • Replies: 4
    • Views: 624
    20th March 2018 14:17 Go to last post
  17. Lacquer Missing - Cure?

    An over-enthusiastic valet pressure washer has stripped off small (3-inch) patches of lacquer under each of the windows. Has anyone any experience of a partial panel repair or will the whole thing need to be done? Whir will shortly have his annual service - is this something for a main dealer to...

    Started by whir1, 7th February 2018 12:10
    lacquer, peeling, respray
    • Replies: 4
    • Views: 776
    12th February 2018 19:00 Go to last post
  18. USB Interface - Radio Frustrations

    Hopefully someone will be able to help me, before I feel like ripping out the radio of smart and replacing it. I have a smart fortwo 451 (62' plate) and my radio is the standard smart setup with the usb and aux in the glovebox (image attached) Now, my iPhone wouldn't play with the USB interface...

    Started by HRH, 11th May 2016 21:06
    • Replies: 5
    • Views: 1,698
    12th February 2018 17:40 Go to last post
  19. Reserve Fuel

    Does anyone know how much reserve fuel a 451 holds and does it only go onto the reserve when there is less than one fuel bar remaining?

    Started by nlel, 21st October 2017 09:21
    • Replies: 4
    • Views: 1,313
    31st January 2018 09:06 Go to last post
  20. V11 Brabus Alloys - Corrosion Enquiry

    Hi These V11 Brabus alloys come with 2 year guarantee but really doubt they would last this long and not show corrosion. Has anyone got the V11 silver alloys - any reports on corrosion versus how long you had the wheels. Thanks Simon

    Started by SUBARB, 30th January 2018 22:16
    • Replies: 1
    • Views: 550
    30th January 2018 22:37 Go to last post

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