Lack of grip - Mercedes Benz SLK Forum

SLK R170 General Discussion SLK 200, SLK 230K, SLK 320, SLK32 AMG

 
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#1 Old 02-10-2014
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Lack of grip

My SLK is very quick to fish tail when accelerating around corners and round a bouts , tyres and suspension look ok.
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#2 Old 02-10-2014
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Smile

Rear wheel drive......yep they do do that a bit. Makes for a more interesting drive though
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#3 Old 02-10-2014
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Depends when you accelerate and how hard you accelerate.. And yes, rear wheel drive does that, which is why it's more fun to drive on the limit than front wheel drive.
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#4 Old 02-10-2014
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Poor grip on bends

Thanks for the input and yes rear wheel drive is the only way

Unfortunately this is a bit more than that, I have driven rear wheel drives for many years merc's and currently a 5 series. This is my wife's car and she is now quiet nervous.
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#5 Old 02-10-2014
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you would upgrade to wider wheels/tires for more grip. there are other various suspension upgrades you could do to increase grip and handling
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#6 Old 02-10-2014
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hate to ask dumb question. do you have the proper tires on the car? correct size for front and back? correct ratings? directional tires rolling in the proper direction?

did this just all of a sudden start happening? if so something is not right and needs to be fixed asap..
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#7 Old 02-11-2014
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I would check the anti-lock brake system and the ESP. My car cuts the power from the engine as soon as the back end breaks loose. I'm not talking about sliding it sideways, but instead as soon as it starts to spin the rear tires, the engine backs way off on horsepower. I couldn't spin the rear tires on dirt roads. I tried it--it won't do it. Also, it helps to have the switch by the gearshift in the 'W' mode rather than the 'S' mode. Starts off in second gear that way. That being said, if I turn off the ESP then the rear end will come around in a split second just like one would expect it to; especially if the road is wet!

You ought to discuss with your wife the cost of rear tires and the possibility of having her buy them. That might keep her right foot from pushing the pedal too far.

Last edited by JiminFL; 02-11-2014 at 08:14 PM.
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#8 Old 02-11-2014
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Check your air pressure, inside the fuel door is the recommended air pressure just remember less pressure = more grip less gas milage, more pressure = less grip better gas mileage. Also verify your ESP is working as should and verify your alignment is correct -Rick
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#9 Old 02-11-2014
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wait until the snow clears before sending her out in it again ;-)
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#10 Old 02-11-2014
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Originally Posted by Nitruc View Post
Thanks for the input and yes rear wheel drive is the only way

Unfortunately this is a bit more than that, I have driven rear wheel drives for many years merc's and currently a 5 series. This is my wife's car and she is now quiet nervous.
In my experience it's not typical for the SLK 200 to have poor rear end stability, quite the opposite. The rear end can be encouraged to let go, but under normal driving should not hang the tail out at all. I suggest you get the car into workshop and have the suspension checked out. Sounds like something is amiss.
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#11 Old 02-11-2014
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I second the tire check recommendation. I have cheap no name tires on my SLK but they are brand new. I can corner hard and not lose the rear unless I want to. Even with ESP turned off it shouldn't break loose as much as yours seems to.
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#12 Old 02-11-2014
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My 320 handled strangely when I first got it. One of the front/rear wheels was switched. You might want to check the ratings on the tires, some tire compounds wear very well, but the traction rating is not good.
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