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Excited to join the MB club with a C400

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Old Sep 12, 2018 | 12:59 AM
  #1  
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Excited to join the MB club with a C400

Picked up a used C400 with low mileage for a decent price in Canada. Easily the fastest car I ever driven. IDP, Full Led, airmatic, and 19" wheels included. Now I'm wondering what's next ? Any suggestions for easy upgrades ?
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Old Sep 12, 2018 | 04:02 AM
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Winter is coming. You need snow shoes...
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Old Sep 12, 2018 | 03:28 PM
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Black out the window trim and get a Diamond Grill off eBay! That’s what I did to mine and now it looks so much better!
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Old Sep 12, 2018 | 07:05 PM
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Originally Posted by guhvies
Winter is coming. You need snow shoes...
Are those really necessary with AWD? I have the Summers was planning to use them year-round until they wear out then switch to Conti DWS.
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Old Sep 12, 2018 | 10:13 PM
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Originally Posted by sr5959
Are those really necessary with AWD? I have the Summers was planning to use them year-round until they wear out then switch to Conti DWS.
The dealer strongly suggested I switch to winter tires.
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Old Sep 12, 2018 | 10:14 PM
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Originally Posted by sr5959
Black out the window trim and get a Diamond Grill off eBay! That’s what I did to mine and now it looks so much better!
please share pics and links to buying these upgrades.
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Old Sep 14, 2018 | 10:12 AM
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Originally Posted by sr5959
Are those really necessary with AWD? I have the Summers was planning to use them year-round until they wear out then switch to Conti DWS.
You'll spin out even with AWD with summers.
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Old Sep 14, 2018 | 01:44 PM
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Originally Posted by lloyd right
The dealer strongly suggested I switch to winter tires.
You'll be fine with all season tires. We get 10+ inches of snow in my area and experience no issues with my all season tires.
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Old Sep 14, 2018 | 06:38 PM
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Originally Posted by lloyd right
please share pics and links to buying these upgrades.
Here’s some pics...
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Old Sep 14, 2018 | 08:05 PM
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I tried the stock runflat Continental summer tires on my new-to-me C400 for a few weeks this past fall/winter. A flurry is all it takes to slide right off the road. It's like being on marbles. I bought all season non runflat Continentals that December after 2 or 3 sliding episodes. I'm very happy that I did. I'd consider it a safety issue if it gets cold/snowy where you are.
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Old Sep 15, 2018 | 01:43 PM
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Thanks for the advice. I think I’ll put on Conti DWS soon, should improve the ride too. I’ve never had a car with Summer tires before.
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Old Sep 16, 2018 | 01:06 PM
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I have Conti dws06. Great tire.
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Old Sep 16, 2018 | 04:27 PM
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Originally Posted by sr5959
Are those really necessary with AWD? I have the Summers was planning to use them year-round until they wear out then switch to Conti DWS.

The Conti summer tires will offer no grip on ice and snow. You'll just be spinning all 4 wheels as soon as you hit an incline. If you live someplace flat with minimal bad whether you might be able to ride it out. If this is a DD and you have any hilly terrain and wintry weather it would be wise to get another set of tires.

I use Pilot AS3+ for my Fall/Winter shoes and run the contis late Spring/Summer. Once the Contis wear out I'll just run the AS3+ year round. In a colder or steeper environment I would run winters 3-4 months of the year and Pilot 4's for the other seasons.

Last edited by Mr. J; Sep 16, 2018 at 04:33 PM.
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Old Sep 16, 2018 | 04:32 PM
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Originally Posted by lloyd right
Picked up a used C400 with low mileage for a decent price in Canada. Easily the fastest car I ever driven. IDP, Full Led, airmatic, and 19" wheels included. Now I'm wondering what's next ? Any suggestions for easy upgrades ?

18'' wheels with winter shoes (Go with aftermarket. MB wheels are soft and overpriced.)
Dash cam
exhaust
Vinyl wrapping or ceramic coating

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Old Sep 16, 2018 | 04:36 PM
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Originally Posted by Adi-Benz
I have Conti dws06. Great tire.
The DWS performance AS is a good tire. When I was searching, the two best rated performance AS tires were consistently the Michelin AS3+ and the Conti DWS. Can't go wrong with either.
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Old Sep 17, 2018 | 06:45 PM
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Originally Posted by Mr. J
The DWS performance AS is a good tire. When I was searching, the two best rated performance AS tires were consistently the Michelin AS3+ and the Conti DWS. Can't go wrong with either.
Which is better the DWS or the AS3+?
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Old Sep 17, 2018 | 09:59 PM
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DWS06s vs. AS3+: both great tires w/offsetting attributes

Originally Posted by sr5959
Which is better the DWS or the AS3+?
DWS06 better ride and winter traction and $20-25 less expensive per tire; AS3+ more precise handling/steering response. Only problem with DWS06s is that if you're running 18" wheels, the front 225/45s only have a load rating of 91. I replaced the OEM run flat Conti ProContacts on my C400 with DWS06s and upsized slightly to 235/45-18 F and 255/40-18 R. Same F/R ratio and only adds 0.6 mph to my speedo. After 8K miles and almost no visible wear, I'm quite pleased with the smoother ride and improved steering response vs. the run flats . The AS3+s may have been a bit more sporting, but you can't go wrong with either tire.
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Old Sep 17, 2018 | 10:40 PM
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Originally Posted by sr5959
Which is better the DWS or the AS3+?

The AS3+ are a little sportier and a little more expensive depending on where you buy. I have heard that the DWS provide a little more grip on snow and slush. The guy who owns the tire shop where I go for all my tire stuff runs DWS on his wife's Audi and loves them. DWS were my second choice behind the AS3+. These two are widely regarded as the top tier for AS performance tires.

One thing I like about the AS3+ is that when you break traction it's much more linear than most other tires. What I mean is that you can feel the wheel slip incrementally increasing instead of them going immediately from grip to slip. This is kind of a minor nuance and only worth considering if you really like to hoon the car a bit.
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Old Sep 18, 2018 | 12:25 AM
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Thanks gentlemen, great advice. I can actually get a set of the Michelin’s at Costco for about $800, cheaper than the Conti’s from tirerack. I’m on 19” OEM wheels.
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Old Sep 20, 2018 | 03:23 PM
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Originally Posted by Adi-Benz
You'll spin out even with AWD with summers.
Very true, been there years ago with an audi - summer tires have no hope period

sr5959 - did you manage to find a clean one? I have been looking but most have claims or nicks/scratches
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Old Sep 20, 2018 | 03:31 PM
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Originally Posted by Hotsauce55
Very true, been there years ago with an audi - summer tires have no hope period

sr5959 - did you manage to find a clean one? I have been looking but most have claims or nicks/scratches
Yes. Mine was a 3 year old CPO, with 35k miles. Condition was/is like new inside and out.
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