Car Crabbing / judder when in full lock

Discussion in 'Wheels, Tyres, Brakes & Suspension' started by C250BLUE, Dec 4, 2019.

  1. C250BLUE

    C250BLUE Active Member

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    Hi.

    When I full lock the steering it seems like my front wheel is hitting or scrubbing against something. I've searched online and it seems this is a very common problem.

    How can I resolve this issue and what is Mercedes doing about this.

    My car is a C220D Amg line 2018 model (new face lift model)

    Only had the car 8 months

    Thanks
     
  2. ash59fifty-uk

    ash59fifty-uk Hardcore MB Enthusiast

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    Search the member ‘driver200’ on here

    Once you’ve finished reading, by around New Year’s Day, you’ll have the answers you seek
     
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  3. OP
    OP
    C250BLUE

    C250BLUE Active Member

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    LOL I know exactly what you mean - 42 pages :eek:
     
  4. Bobby Dazzler

    Bobby Dazzler MB Club Veteran

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    Full lock, performance tyre compounds, low profile tyres, hard sidewalls, low temperatures and slippery surface combine to cause this, which is often exaggerated by four wheel drive.

    My car did it this morning. I wonder whether Mercedes will give me some winter tyres? It would save me buying some...
     
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  5. John N

    John N Hardcore MB Enthusiast

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    My C250 17 Plate had this problem until I changed the Front Continentals that it came with, for Michelin!
     
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  6. Germgh0st

    Germgh0st Hardcore MB Enthusiast

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    Mercedes are changing the Pirelli P Zeros on my C43 to Bridgestone or Continentals at their own cost. Not sure which I'm going to get yet.
     
  7. SarahAnn200

    SarahAnn200 Member

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    I bought a 19 reg c43 last week and it did the judder thing on full lock. I need full lock in and out of my drive. I emailed Mercedes customer services and received a reply from an Amg specialist to say the dealer will look after me. I spoke to the supplying dealer. Took the car back on Monday and they fitted Bridgestone tyres free of charge. Judder has now gone. They call it a characteristic but the tyre change fixes it. The dealer was putting a claim into Mercedes for the cost of the tyres. I'm thrilled with the c43 now
     
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  8. st13phil

    st13phil MB Club Veteran

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    Answering your questions in order:
    1. In the current colder conditions, you can eliminate the jumping on full lock by fitting winter tyres
    2. Nothing
    OK, I'll expand on the second answer. The sensation you're experiencing is commonplace on all cars running wide, low-profile, summer tyres in cold conditions. It's a function of the outer edge of the tyre needing to rotate at a different speed to the inner edge when on lock, and that's something that clearly can't happen. At low temperatures, summer tyres lose compliance and therefore have a noticeable "wind up then slip" characteristic that is felt as the tyre skipping or jumping. This is more prevalent when tyres are worn as the tread blocks have less "give", so even replacing the part worn tyres with new examples may reduce or stop the sensation, while swapping to winter tyres which have higher compliance in cold weather will almost certainly likely eliminate it completely.

    Note that while this issue on a RWD car is similar to that experienced by owners of the current 4WD Mercedes cars, the latter experience the effect in a more extreme fashion and as a result of a litany of customer complaints Mercedes have made engineering changes to some models to reduce (but not completely eliminate) the sensation, and have also offered some owners replacement tyres that are more compliant. For RWD cars it's just the way it is and you will either have to learn to live with it or swap to winter tyres at your own cost.
     
    C250BLUE likes this.
  9. Scooby_Doo

    Scooby_Doo Hardcore MB Enthusiast

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    Both my C250 4matic and my wife's 2011 A class ( 16" Dunlops) crab on full lock out the garage. Both now on Michelin cross climates on the front , no crabbing.
    The crabbing is not only on performance tyres or 4WD. Doesn't particularly bother me on either car.
    When the A class's tyres were down to 3mm it felt as if the wheel bearings had gone.
    As mentioned on a previous post , I have clay paviors on my drive which ,due to their slightly abrasive surface, are very unforgiving when rubber scrubs over them and probably why my front tyres never last more than 7 - 8000 miles.:(
     
    Last edited: Dec 5, 2019

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