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Forum: 450 fortwo - Technical Queries

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  1. 450 CDI not boosting

    My 450 CDI has had a replacement turbo, EGR valve and a new exhaust fitted but it is not making any boost whatsoever and I can't figure out why this might be. The actuator seems a bit stiff but apart from that, the car does appear to be running normally but severely lacking in power, meaning ~55mph...

    Started by Ocracoke, 22nd September 2019 01:56
    • Replies: 4
    • Views: 221
    24th September 2019 08:29 Go to last post
  2. Gearbox actuator?

    Mysterious gear selection problem: Car sometimes wonít go into 1st, or reverse gear and stays resolutely in neutral. Initial thought is, of course itís the clutch actuator, but the car starts - no 3 lines on the dash. Iíve recently rebuilt the engine and so I checked and greased the clutch...

    Started by Smartysmartface, 9th September 2019 12:32
    • Replies: 4
    • Views: 274
    10th September 2019 19:59 Go to last post
  3. Water ingress in footwells around centre console

    Afternoon all Apologies in advance for the long read, but as you'll see, I'm confused . . . . . . so I've found water under the front carpets of the Smart - which from what I've read isn't all that unusual - but what is unusual is how it's dispersed. The majority of the water is around the...

    Started by the-chauffeur, 24th January 2019 21:18
    3 Pages
    1 2 3
    footwell, ingress, leak, water
    • Replies: 22
    • Views: 2,504
    4th September 2019 06:21 Go to last post
  4. 1984 synthetic engine oil

    Iíve been tidying up a wee bit and found in my shed six litres of synthetic oil from 1984. At that time synthetic oil was rather expensive and I only used this oil for winter. Drained it early May and replaced with standard mineral oil. I wonder if this old oil now is still safe to use. From...

    Started by tolsen123, 20th August 2019 22:40
    • Replies: 3
    • Views: 381
    21st August 2019 14:51 Go to last post
  5. Gear Indicator showing 0

    Hi 450 City Pure 61. All was going so well, then yesterday when i went to shift into a gear the display says 0 and there is no drive. Same when I try and get reverse. Engine starts and sounds good. Checked the actuator and that is moving in and out. Cleaned all plug connections I can see....

    Started by Squat, 13th May 2019 13:28
    3 Pages
    1 2 3
    • Replies: 24
    • Views: 1,696
    15th August 2019 19:37 Go to last post
  6. Front washer jets

    Looks like my jets are completely blocked, gunk is coming out, tried poking with needle but does not help. Can the jet mount be removed without taking off front of car ? Thanks

    Started by Robinb, 11th August 2019 11:28
    2 Pages
    1 2
    • Replies: 12
    • Views: 550
    12th August 2019 11:28 Go to last post
  7. Canbus codes stalling fault

    My driving style utilises the auto function. I'm gentle on the, accelerator allowing gear changes without forced acceleration (as I feel the clutch is not that good.) There has been a noticeable pattern to the stalling/ power loss issue which is typically at a low speed and RPM. Either shortly...

    Started by Pocetsize, 29th July 2019 11:55
    2 Pages
    1 2
    canbus stalling
    • Replies: 14
    • Views: 713
    6th August 2019 18:53 Go to last post
  8. Paint code

    Does anyone know the correct paint code for alloy wheels on the 450? Thanks.

    Started by Chopper, 22nd July 2019 10:37
    • Replies: 1
    • Views: 443
    22nd July 2019 11:06 Go to last post
  9. Crashy smart

    Are they just that crashy? Ours seem to just crash I to every speed bump and pot hole! Or are the dampers/springs on ours goosed? Ta!

    Started by Karlos28, 8th June 2019 19:53
    • Replies: 4
    • Views: 842
    11th June 2019 10:55 Go to last post
  10. Replacement pipes

    Hello all, I am pretty new to smart cars and need some help please Can anyone point me in the right direction to order two new pipes, I dont know what they are called but both are damaged 1 is the smaller one 2 is a bigger pipe (on my car the previous owner looks like they cut it too short)...

    Started by smartdizzy, 4th June 2019 13:26
    • Replies: 5
    • Views: 734
    6th June 2019 16:41 Go to last post
  11. Assisted steering becomes stiff once in motion

    The power steering becomes really stiff once in motion but is great when, parking and rolling from start. Is this a simple case of the motor? Brabus 2004-5 74bhp

    Started by Pocetsize, 12th April 2019 23:22
    2 Pages
    1 2
    assisted steering stiff
    • Replies: 13
    • Views: 1,419
    6th June 2019 12:03 Go to last post
  12. Strong starter turns the engine but sometimes will not fire

    The starter whirls the engine around but it's not firing. Has a 4-5 sec. cycle once the key is in Pos. 2 then try again turn the, key. Usually this occurs and by the third of fourth attempt the engine will start. I've removed the valve and fuel is in the system. The plugs and ignition cables...

    Started by Pocetsize, 18th May 2019 20:54
    • Replies: 2
    • Views: 762
    21st May 2019 18:00 Go to last post
  13. Connector under warning triangle - main feed

    2005, 450 0.7l petrol the main connector to the warning triangle circuit is breaking apart. Glued it together about a month ago. But today various function stoped working again (clock power, repeater / activation lights on buttons etc. Is it possible to buy a replacement connector ? If so...

    Started by Robinb, 11th May 2019 10:35
    • Replies: 4
    • Views: 823
    11th May 2019 18:34 Go to last post
  14. Cam chain tension/replacement

    I have got a rattle noise that starts @3000 rpm.It happens as I change gear but is not gearbox related. Today I have been looking through the oil filler hole and found that by turning the engine over via the pulley @ every time the exhaust valve closes (seen through the plug hole) the cam sprocket...

    Started by peanut, 8th September 2018 17:08
    16 Pages
    1 2 3 ... 16
    • Replies: 151
    • Views: 8,469
    9th May 2019 12:23 Go to last post
  15. What the heck is this wire for?

    Found this loose under the passenger side. Canít be that important as Iím experiencing no issues with the car. Any ideas what this connection is for? Cheers.

    Started by 7hil, 28th April 2019 12:50
    2 Pages
    1 2
    • Replies: 15
    • Views: 1,406
    7th May 2019 08:47 Go to last post
  16. Bluetooth Accessory Installation Wiring Help

    I purchased a Bluetooth Module that just plugs into the AUX section pins at the back of my Grundig CD Radio. The Blue block socket just goes where my old iPod Holder AUX connection used to go. Seems easy enough but there is a Red 12V wire and a Black Ground Wire coming out of the Bluetooth...

    Started by 7hil, 30th April 2019 06:12
    • Replies: 4
    • Views: 888
    30th April 2019 23:10 Go to last post
  17. How to fit a sun blind to a glass roofed Smart that doesn't have one?

    Has anybody tried doing this? There's a black track that runs down the middle of the roof which the blind travels on. Do I have to remove the head lining / trim and put this behind, or is there a smart way of doing this? If the trim needs to come down then does it come off easily? Thanks. Might...

    Started by Smartysmartface, 6th April 2019 10:34
    • Replies: 4
    • Views: 1,048
    23rd April 2019 06:36 Go to last post
  18. MB Star system recommendations?

    I've had a Delphi 150e for a while. It worked (kind of), then packed up. So I bought another one which has yet to arrive. I've been putting off the inevitable since I started with this car - I really need a MB Star setup. I need get as much help as possible with my CANbus prolem (that's another...

    Started by Smartysmartface, 29th August 2018 14:03
    • Replies: 7
    • Views: 1,612
    22nd April 2019 09:37 Go to last post
  19. EML on, caused by SRS/airbag?

    Hi all can the srs/airbag/pretensioner wiring under the seats of an 02 450 put the EML on? Just had mine come on after stuffing satnav under seat! Wots the best obd to use to find out? Thanx.

    Started by jackrussel1996, 14th April 2019 14:34
    • Replies: 7
    • Views: 1,052
    15th April 2019 18:57 Go to last post
  20. Fuel pump operation

    Testing the pump directly by removing it from the tank resulted with fitting a replacement however the replacement is also suspected of being broken. The replacement is electrified with good positive current and has a buzz when touched but not pumping fuel? What is the operation of the pump?...

    Started by Pocetsize, 12th April 2019 23:14
    fuel pump
    • Replies: 2
    • Views: 878
    13th April 2019 12:37 Go to last post

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