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Forum: 451 fortwo - Technical Queries

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  1. 2008 451 petrol V-belt replacement

    Havenít actually had anything to ask about my 2008 fortwo 451 for a while as itís been utterly reliable! (1 litre petrol, 70bhp, non-turbo Mitsubishi 3-cylinder) - but Iíve still got it. Itís done 51,000 miles now, and is 12 years old. The belts that drive the air conditioning and the...

    Started by nomen usoris, 21st January 2020 18:54
    • Replies: 5
    • Views: 245
    14th February 2020 08:35 Go to last post
  2. 451 Brakes

    I sold my 451 to my niece and she says the brakes are shot so I got her a quote of £ 151.19 inc GST for a new set of front brake discs and pads. I presume its most likely to be the front brakes at fault but is there any rear brake discs?

    Started by nlel, 29th April 2019 13:08
    4 Pages
    1 2 3 ... 4
    • Replies: 30
    • Views: 3,592
    4th February 2020 17:40 Go to last post
  3. Smart 451 - Typical mileage expected before clutch replacement

    Hi I have a Brabus 451 with 65000 miles original clutch. Interesting in finding out how many miles other peopleís clutches have lasted for 451 only. Thanks

    Started by SUBARB, 6th August 2019 19:39
    • Replies: 2
    • Views: 987
    28th January 2020 13:48 Go to last post
  4. 451 2009 CDI temperature gauge.

    Any suggestions why ti's doing this: https://www.youtube.com/watch?v=T5gmMKkn0fU I changed the temperature sensor, checked the coolant level, disconnected the battery for a while and its just the same. No fault codes stored though I have not had Star on it yet.

    Started by Mjolinor, 11th January 2020 14:36
    2 Pages
    1 2
    • Replies: 10
    • Views: 300
    14th January 2020 12:48 Go to last post
  5. Boot opening.

    My battery went flat so charged it up and the autolock had enabled itself so I disabled it. No problems. However, it now seems that to open the boot I have to turn the engine off. I am sure it never used to be like that. Anyone know how to make it so I can open the boot with the engine...

    Started by Mjolinor, 24th December 2019 16:29
    2 Pages
    1 2
    • Replies: 12
    • Views: 783
    29th December 2019 08:55 Go to last post
  6. CDI fuel problem

    Are there any documented cases of the high pressure pump seal leaking diesel into the oil. Since I got the car I have had increasing oil levels, this doesn't really bother me as I just change the oil regularly. I put it down to me doing pitifully low mileage. A few months ago on an airport...

    Started by Mjolinor, 10th September 2019 09:32
    3 Pages
    1 2 3
    • Replies: 24
    • Views: 3,354
    11th November 2019 01:33 Go to last post
  7. 451 rear crash bar Torx screws

    Hi Wondered if anyone happened to know the part code for the rear crash bar Torx screws. I did contact mercedes dealership but for some reason the Torx screws are not listed on their part code drawings. Thanks

    Started by SUBARB, 28th October 2019 12:24
    • Replies: 4
    • Views: 910
    29th October 2019 18:47 Go to last post
  8. 451 Brabus exhaust manifold material grade

    Hi Does anyone know the material grade for the 451 exhaust manifold. This is from the engine to turbo inlet. Garage wanted to know prior to attempting welding of crack. Garage said they can only mild steel

    Started by SUBARB, 25th October 2019 11:56
    • Replies: 7
    • Views: 1,040
    29th October 2019 17:08 Go to last post
  9. Smart 451 wheel bearings

    When driving my 451 there is a drone when driving so I wondered if it could be wheel bearings I have jacked up the rear and spun both wheels they do make a reasonable amount of noise when spinning the noise is not break related and is bearing noise but in fairness how do I know if they have failed...

    Started by Campsea, 8th September 2019 10:14
    • Replies: 6
    • Views: 1,023
    9th September 2019 07:50 Go to last post
  10. 451 Smart Brakes Binding????

    I have a 63 plate 451 brabus, when I pull away from stationary I can hear the brakes 'dragging' if that makes sense??! Where do I start in sorting out this issue? Ive only just brought the smart and the front pads and discs are new as the original owner had full merc history therefore I guessing...

    Started by Campsea, 10th August 2019 12:02
    • Replies: 5
    • Views: 1,205
    11th August 2019 12:07 Go to last post
  11. Glovebox Blanking Plate

    Im looking at replacing my Highline stereo with a double din apple car play stereo is there a Smart blanking plate for the glovebox USB and stereo ports as I wish to sell my highland stereo and ports? Thanks.

    Started by Campsea, 10th August 2019 12:30
    • Replies: 1
    • Views: 875
    10th August 2019 13:12 Go to last post
  12. 2008 smart 451 - panel replacement - bodyshop in NW?

    I want to replace the rear bumper centre section and offside rear panel on my 2008 smart 451 because they are scuffed. I already ordered the parts and read the procedure on Evilution but it looks too complicated for me to attempt on my own without damaging something. Can anyone recommend a...

    Started by ash73, 25th July 2019 14:54
    2 Pages
    1 2
    • Replies: 10
    • Views: 1,653
    31st July 2019 17:04 Go to last post
  13. what battery fits 2008 451 turbo

    Hi, can someone point me to a cheap-ish replacement battery that fits a 2008 451 ForTwo 1.0 petrol turbo? I gather it needs a gas vent but none of them specify this. What is the OEM battery? Is it a Banner? The Banner web site doesn't list the 451 but this might be an error.

    Started by ash73, 25th July 2019 00:24
    • Replies: 0
    • Views: 883
    25th July 2019 00:24 Go to last post
  14. Keyless entry remote acting up.

    One minute it works normally then the next time I use it it doesn't. When I press LOCK, UNLOCK or the HATCH button, the lights flash 3 times but the doors don't unlock. If a door is open and I press any button, both door locks go on and off twice. The most annoying thing is when I can't get the...

    Started by atikovi, 30th April 2019 20:37
    • Replies: 1
    • Views: 1,241
    30th April 2019 21:09 Go to last post
  15. Traction control light comes on and stays on until restart during motorway driving

    Seeing a strange problem with my (aged) 451 lately that I've not seen before during her 126,000 miles done so far. While driving from Manchester to London last month during driving rain on the motorway the traction control light comes on and remains lit some 100 miles or so into the journey, I...

    Started by andrewh1973, 16th January 2019 00:22
    2 Pages
    1 2
    • Replies: 19
    • Views: 3,002
    23rd April 2019 08:02 Go to last post
  16. Stereo fuse keeps blowing

    Hi all, my stereo keeps blowing thebl10a fuse at the back of the unit by the dins. Any ideas and does the wiring look right (pic to follow as can't upload now) as the leads going into the din were loose when I took it out. Its not worked since I've had the car. Thanks 👍

    Started by Smart PB, 19th March 2019 09:59
    • Replies: 4
    • Views: 1,581
    5th April 2019 11:20 Go to last post
  17. Permanently disable ECO/MHD or repair!

    Hi all For the last few days I have been driving only with ECO off and touch wood the car has driven fine with it off. For those that haven't seen my previous posts the car was going into neutral when driving, then not selecting gear, jumping & slack gear changes. So it seems MHD is the...

    Started by Smart PB, 14th March 2019 14:31
    • Replies: 7
    • Views: 1,801
    23rd March 2019 13:47 Go to last post
  18. Downstream lambda and bonnet queries

    Hello everyone and a happy Friday to you all! Couple of things: Need to change my downstream O2 sensor, anyone know do I need to take the rear bumper off to do this please? Also it seems, well no it doesn't seem at all, my bonnet doesn't have any locks in it. So you can lift out when them...

    Started by Smart PB, 1st March 2019 12:32
    • Replies: 0
    • Views: 1,358
    1st March 2019 12:32 Go to last post
  19. 451 audio system cd stuck

    Hi folks. Have the Highline audio system in my 451 MHD. I loaded a cd tonight and it is stuck inside the player. I have pressed eject, turned the player off and on, turned the car off and on but still can't get the cd out. The front panel will not close and there is a continuous faint clicking...

    Started by Hadleigh Marky, 27th February 2019 18:50
    • Replies: 2
    • Views: 1,452
    27th February 2019 20:40 Go to last post
  20. Got me a Smart, it isn't well!

    Hi all So after liking the look for ages I finally took the plunge and bought one the other day. A lovely little 2009 Passion MHD 1L in grey/silver. Now that was the good bit, the bad bit is it isn't at all well! The following is a long story, long story short I think am looking for...

    Started by Smart PB, 2nd February 2019 19:26
    5 Pages
    1 2 3 ... 5
    actuator, clutch, transmission update
    • Replies: 46
    • Views: 5,438
    27th February 2019 16:01 Go to last post

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