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Forum: 450 fortwo - Technical Queries

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  1. Have you ever had CAN bus issues?

    Now here's a question. It would be really great to hear a few people's experiences here.. Have you ever had a CAN bus problem? If so, what was cause and what was the cure? I've got an intermittent CAN bus issue (I think). The engine stops. If I switch ignition off, into neutral, foot on...

    Started by Smartysmartface, 17th July 2018 11:23
    2 Pages
    1 2
    • Replies: 12
    • Views: 135
    18th July 2018 11:08 Go to last post
  2. A Mystery Wire

    As I was checking the spark plugs the other day, as you do. I had the rear panel and crash bar removed. Previously, I had noticed a white wire floating around on top of the engine previously, it was neatly folded and taped to the intercooler pipe with its spade connector neatly taped up. With the...

    Started by Smartysmartface, 19th June 2018 13:00
    • Replies: 1
    • Views: 128
    17th July 2018 12:33 Go to last post
  3. starting problem

    please can somebody please help I've a problem with my wife's smart fortwo it wont start the problem started with a flat battery which I started via jump leads when leads where disconnected the car cut out and will Not start no engine turn over when the ignition is turn on the dashboard shows a...

    Started by briden, 15th June 2017 19:43
    3 Pages
    1 2 3
    • Replies: 22
    • Views: 2,439
    16th July 2018 17:08 Go to last post
  4. Rattling UJs?

    Driving over any rough ground I get a rattle from the steering which sounds horrendous. I've just changed the wishbones with new bushes and ball-joints, anti-roll bar bushes and drop-links. I've checked the track rod end joints and they see okay. I can't feel any play in the column, but the noise...

    Started by Smartysmartface, 7th July 2018 22:17
    2 Pages
    1 2
    • Replies: 15
    • Views: 305
    16th July 2018 07:13 Go to last post
  5. Outside temp gauge after battery change.

    I changed my battery this morning and now the outside air temp sensor which was reading in Celsius is now reading in farenheight. There is nothing in the manual about how to change this. How change ? thanks

    Started by Robinb, 24th June 2018 14:47
    • Replies: 8
    • Views: 226
    13th July 2018 20:33 Go to last post
  6. Help! I've no idea what this is...

    Pressure washed the underside of the 450 the other day, with the undertrays removed - preparing to waxoyle etc... After the festivities I found a thing on the ground: I've no clue where to pop rivet it on to! :icon_redf - It's rectangular roughly 75mmx40mm with a raised lug at one end, black...

    Started by Matt Quinn, 11th July 2018 12:48
    • Replies: 4
    • Views: 170
    11th July 2018 18:06 Go to last post
  7. Which bulbs for high level brake light?

    Anyone know which bulbs I need? Read theyre 286 bulbs but they look tiny, sure 286 are the same as the dashboard ones.

    Started by Berty981, 24th June 2018 20:34
    • Replies: 3
    • Views: 164
    9th July 2018 13:59 Go to last post
  8. Rear x brace compatibly?

    Anyone know if the 451 rear cross brace is the same as the 450? The 451 version has 451 in the part number, so Iím not sure. Found a cheap one on eBay, which is the reason for the question 🤫 Sent from my iPhone using Tapatalk

    Started by Smartysmartface, 1st July 2018 20:21
    • Replies: 2
    • Views: 142
    9th July 2018 13:55 Go to last post
  9. Welding a 450 - Precautions?

    Greetings all, fist post and first thread! I own a 2002 450 to which I've become quite attached, so it 'will' be repaired. I'm yet to make a full inspection, but it's become clear it will need welding to the sill area around the jacking point. I'm quite confident in my abilities to do this...

    Started by Matt Quinn, 3rd July 2018 17:31
    450, mig, rust repair, welding
    • Replies: 8
    • Views: 179
    3rd July 2018 20:54 Go to last post
  10. Knocking sound and feeling!

    I have a 450 smart cabrio. The steering wheel feels 'clunky' and 'knocky' however I'm used to it, however when at low speeds (for example parking), if I turn the wheel in full lock there is a feeling that something is knocking / hitting. In the past few months I have replaced the following: ...

    Started by Campsea, 25th June 2018 18:16
    • Replies: 3
    • Views: 219
    3rd July 2018 19:34 Go to last post
  11. Gearbox oil change

    What gearbox oil is recommended by owners? I have had a search and now a bit confused as atf and 75/80 gets mentioned. 53 plate 2002 pure semi auto. Thanks

    Started by peanut, 12th June 2018 21:29
    3 Pages
    1 2 3
    • Replies: 27
    • Views: 894
    25th June 2018 16:56 Go to last post
  12. Alternator problem

    Do you have to drop the engine to access the altenator?

    Started by Barnsey, 25th June 2018 09:01
    • Replies: 1
    • Views: 135
    25th June 2018 09:54 Go to last post
  13. gear rotation angle sensor replacement question

    Had an issue a week ago where car was bunny hopping when trying to engage gear. Problem went away after about 20 mins. It did it again but not as bad today. Putting on diagnostic it comes up with gear rotation angle sensor error P2056 Fare enough can replace sensor without issue. ...

    Started by Robinb, 30th May 2018 10:13
    2 Pages
    1 2
    • Replies: 10
    • Views: 403
    24th June 2018 18:01 Go to last post
  14. Actuator Abuse!

    Hello everybody, new member to the forum here. Quick introÖ Bought a 2005 700cc Smart 450 coupe a week ago as a non-runner for the grand total of £240. Nice little car really, Iíve checked it over and I can spot two potential MOT failures and a few other problems, but none that are too hard...

    Started by Smartysmartface, 24th May 2018 22:24
    2 Pages
    1 2
    actuator, clutch, three lines
    • Replies: 19
    • Views: 924
    19th June 2018 10:14 Go to last post
  15. 3 bars on dash 2006 0.7t

    Have fault codes p2035 and p2036 permanent, I've changed every gearbox sensor with one I know work from another car but it still won't reset the fault codes. Loosing the will to live now. I've had the gearbox loom out to check for any breaks and found nothing. Any ideas to try.

    Started by Markkilburn, 9th August 2017 17:19
    • Replies: 8
    • Views: 1,043
    18th June 2018 09:28 Go to last post
  16. 450 Clutch adjustment in or near Cumbria

    Hi, trying to find someone nearby that can adjust the actuator on my wifes 2004 450, im in Carlisle. Its getting a bit bunny hoppy when setting off or reversing with not many revs. Thanks

    Started by Berty981, 10th June 2018 19:28
    • Replies: 9
    • Views: 283
    15th June 2018 10:29 Go to last post
  17. Windscreen washer jets

    Hi all, GF ran out of washer fluid and asked me to top up. No bother, but when I came to bleed/try them out they were firing all over the place.so after about an hour of seeing about with a needle trying to get them pointing something like, I gave up... They seem to either fire off the car,...

    Started by Karlos28, 31st May 2018 13:14
    • Replies: 3
    • Views: 246
    4th June 2018 11:50 Go to last post
  18. Smart dealer cost of parts 40x that of Ebay ABS reluctor rings!

    Just paid for the most valuable information I have ever received. I had a service with smart for my 2005 450 698cc. Unfortunately the ABS, Air bag & ESP lights will not go out until replacements parts are fitted. I was quoted, SRS/ ESP light requires new steering wheel - £857.40 inc VAT (Labour...

    Started by Pocetsize, 18th May 2018 08:43
    2 Pages
    1 2
    abs, costs, reluctor
    • Replies: 12
    • Views: 533
    19th May 2018 14:13 Go to last post
  19. Rev Counter - It go Bye Bye's ?

    Had my smart for a fraction over 2 years now. Rev counter always worked perfect. Just this afternoon, traveling along the road, (10 mins into a 20 min journey) glanced over at my rev counter. It's reading zero. Did the obvious male fix = tapped it, and smacked it a bit in all directions, but...

    Started by Snaffy, 7th April 2018 15:09
    2 Pages
    1 2
    • Replies: 13
    • Views: 824
    15th May 2018 22:28 Go to last post
  20. Angry Temporary dip in power and then cuts out when stopped

    Hi guys. Bit of help needed. Smart 450 coupe 2007 petrol. My wife does an 80 mile round trip to work. When driving down the motorway she has noticed a slight dip in power now and again only for a second or two then back to normal. Then when at some traffic lights it cut out when she...

    Started by Brindley, 4th May 2018 20:06
    450, cutting out, petrol, power loss
    • Replies: 7
    • Views: 452
    11th May 2018 09:10 Go to last post

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