Used 2015 Mercedes-Benz C-Class C 400 Sport 4MATIC 4dr Sedan AWD (3.0L 6cyl Turbo 7A) Consumer Reviews
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My Mercedes C400 is the Worst Car I've Ever Owned
Jennifer, West Long Branch, NJ, 08/12/2015
Mercedes-Benz C-Class C 400 Sport 4MATIC 4dr Sedan AWD (3.0L 6cyl Turbo 7A)
14 of 28 people found this review helpful
I've owned my Mercedes C400 for less than a year. Best car I've ever driven. But like anything with astounding beauty and pedigree, it's simply too high maintenance, too cold, and now, too unreliable to be practical. From issues with components not properly installed on delivery, door seals unraveling a week into ownership, two recalls, a lack of comfort in the cabin so extreme I don’t drive the car long distances, an engine stall in the street (sans key), service issues, and finally, total unreliability and failure; my C400 experience has been pretty disappointing. I'd wait at least a few more generations before touching this model-- the glitches can be severe! Intuitive? It's smart enough to drive without a key within twenty feet, and stupid enough to stay in start mode and drain your battery, without any active attempt to start the car or even be present in the car for up to five (5) hours. How smart is that. Don't let your kids touch that button! I found out. After meter parking the car in NYC, and returning several times to re-load the meter and re-display my ticket inside the car’s dash window, locking the car every time, yet the car remained in active start mode until the battery died, with no error or warning message. Smart would be something different. If there is no active start (after pressing the start button) after a period of time--perhaps this super smart car should inform the occupant, via its intuitive messaging system (no one but Mercedes can decode your car— so they tell me-- how's that for transparency), that if no ignition is attempted within X period of time, the power will terminate, and preserve battery life. Now, that would be smart. The C400 is not that smart. At less than 3500 miles, the battery died and two attempts (one of which was by Mercedes) failed to remedy the problem without dealer interference, some 60 miles and three days away. Think about that. You are stuck in the middle of no where (to you, anyway), with a dead battery-- which can happen to anyone. Mercedes roadside assistance fails to charge the battery or offer any other diagnostics on the car, and leaves you to tow to their dealership, where only they can remedy the issue. Why? The C400 apparently needed an extra long charge, longer than another motorist, a tow truck or their own roadside assistance could seem to achieve when they attempted to jumpstart the car-- the electronics wouldn't even activate but to unlock the doors and leave them disarmed. A stalled battery is one thing-- and arguably my own fault. But who wants a car so smart it won't take a charge from anyone but Mercedes? While I believe the battery had, in fact, juiced itself into a coma, I also believe something went array with the car’s electrical and computer system, and the error was one that only Mercedes could clear. How’s that for holding yourself accountable. I had another safety issue with my Mercedes C400. One morning as I was rushing to work, I got in the car (kids in tow), started her up, and reversed into the street when the car stalled. Realizing I forgot my key, which was some twenty feet away, inside my house, it dawned on me how incredible it is that I was able to start my car and pull into a busy street, with no key in close proximity. After a recent trip to the dealership, this was corrected, it seems but the service manager refused to disclose it had been an issue to begin with. My dealership (the worst luxury dealer I've ever encountered) insists there is nothing wrong with these cars and sales are robust, yet I have never seen another C400 on the road in my area. Seems to me Mercedes has some work to do in refining this model. I hope Mercedes will proactively recall any C400's with a safety issue and correct any defects in its messaging/electrical systems, if found, of course. Safety should be their top priority. Back to Audi. Tail between legs. Sigh. BTW, I offered my C400 back to the dealership (with less than 3500 miles). Not surprisingly, they passed.
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C400 tires
Randy Vogt, Windsor, MO, 09/07/2018
updated 09/12/2019
Mercedes-Benz C-Class C 400 Sport 4MATIC 4dr Sedan AWD (3.0L 6cyl Turbo 7A)
2 of 4 people found this review helpful
I own a c 400 and over the last 18 months , I have had to replace 8 tires, 2 rims, and the front axles. Thank god for the tire warranty. I think they’re made of jello. It’s complete ridiculous. I’ve tried to get them to give me. A different brand but they won’t. I’m really inconvenient to have to go to the service constantly, but at least I’ve always got brand new tires. Wtf? I assume it’s because it so heavy???................2 & 1/2 yrs in and I’ve had 14 count em, 14 flat tires. Yay!!! Don’t let them put continental tires on.
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Tire eater from hell !!!
Doctor Tire Eater, Tehachapi, CA, 06/14/2017
updated 06/24/2020
Mercedes-Benz C-Class C 400 Sport 4MATIC 4dr Sedan AWD (3.0L 6cyl Turbo 7A)
1 of 2 people found this review helpful
I bought this loaded 2015 c 400 with 9oo miles from the local Mercedes dealer on December 31, 2016 for $41k. A good deal, but...It eats front tires to such a degree that I now regret buying it. As usual for the C 300 class, the front tires are smaller than the rear so you can't rotate them. At 8500 miles the front tires were worn out. These Continental run flats cost $675 for two of them. The luxury and power are seductive, but the relentless depreciation and high maintenance cost make me wish I would have just bought the juvenile Subaru WRX or super juvenile ( according to my wife) WRX STI. I like driving in the mountains twice a week but the maintenance costs of my C 400...really all Mercedes...make me regret purchasing them. If I drove in the mountains daily, I probably would only get 5,000 miles out of them!
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great car eats expensive front tires evry 8k miles
tam, San Juan Capistrano, CA, 10/06/2017
Mercedes-Benz C-Class C 400 Sport 4MATIC 4dr Sedan AWD (3.0L 6cyl Turbo 7A)
0 of 0 people found this review helpful
We have a 2015 c 400 that eats the outside edges in 6-8 k miles, inside edge still has 85% tread left . Take it in at 10 k miles when we first noticed outside edge of tires down to cords. I am told out of alignment , even when it tracks straight as a arrow, I have to pay for alignment that proves it is spot on factory settings, Then they say driving habit. Wife drives the car on the same freeway route as she did with our previous c 250 that got over 40k miles on original set of tires. Car currently has 40 k miles on it , brakes are at 70% life left , so not a hard driving issue. .Have been through 4 sets of front tires that I toss with over 85% of tread left on inside edge and centers at 8/32 tread depth and outside edges worn to cords .Only on 2nd set of rears that wear consistent from edge to edge and gave life expected of a super summer tire of 20 k miles If it was a hard driving issue rears would wear faster as well. Run flats at 20 inch size are 500 each !! Car is a poor design and MB will do nothing about it Every service writer knows it is a issue but mercedes usa will not address it and will not do anything about it. Very poor customer service from mercedes usa. ANYONE ELSE WITH A C SERIES 4 MATIC OR ANY OTHER 4 MATIC HAVING SAME ISSUES ??
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