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C300

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Question
Interior lights and the stereo cuts off and on while the carnival is on, and now it won't move when U put it in gear...
Hi Norcolon. Thanks for the question. Unfortunately, we need a bit more detail about what is happening with your Mercedes-Benz in order to correctly identify the root issue. It appears as if you've got a rather large electrical glitch, that...
Question
activating the auto lock feature on a c300 mercedes
This is an electrical problem that will require a circuit trace and electrical diagnostic to pinpoint and thence resolve the issue. If you desire prompt service and a complete resolution, please request repair service using YourMechanic's electrical diagnostic service request...
Question
Hello, I have a 2010 Mercedes c300. Lately each time I put gas the car won’t start until I keep pushing gas pedal. Code p2422
The codes (P0174, P0171) indicate insufficient fuel relative to the air charge (i.e., lean operation). Lean operation can be caused by a faulty fuel pressure regulator, a weak fuel pump, a clogged fuel filter, a faulty powertrain control module (not...
Question
Mercedes W205 C300 2015 4doors having jerk in gear from 2-3 and from 3-4
It sounds like you may have an internal transmission issue. It is possible that some reprogramming of the shift solenoids may resolve this issue. Otherwise I would recommend having a transmission specialist inspect your vehicle for any issues.
Question
I accidentally put diesel in a gas tank and drove like for 2 blocks.then it stoped.it does start up but does it completely. And si
The fuel system will have to be thoroughly cleaned and that's about it. A gasoline engine will not run on diesel. Your car was running during those 2 blocks on the gasoline that was in the fuel lines. Once the...
Question
The Esl is locked car won't start
With ignition on look to see if theft light is on or blinking to see if theft system is active. Sometimes another key if you have one will start vehicle if the key FOB is defective.If the battery is dead...
Question
Is a 2008 Mercedes C300 sport sedan with 75,000 miles a good buy?
In evaluating the wisdom of buying a particular model of car (used or new), consult the database of the National Highway Traffic Safety Administration, NHTSA. The NHTSA database contains model specific consumer complaints, official recalls and factory service bulletins searchable...
Question
Every time it rains, my passenger side floor/carpet is soak. I'm driving a 2014 Mercedes C 300 60,000 miles
Hi there. In most cases, when you have water leaking underneath your dashboard on the passenger side, it's due to one of two things; either your AC system is developing a lot of condensation due to the excess humidity and...
Question
I had a really weird thing happen to me the other day. I shipped my car on a barge to our neighboring island here in Hawaii
The only way to determine if negligence is the cause of the no start condition is to determine the cause of the no start. Once the cause is found, it will be clear if negligence is even a "potential" cause....
Question
why does the mouse pad that also controls the car system stop working most times?
Problems with the touchpad are occasionally reported on Mercedes Benz models and other cars as well. The touchpad membrane is probably just defective but there could be additional issues as well if the unit is not even powering on. We...
Question
Can a mechanic crack a rim while changing a tire?
Hi Adeline. Thanks for contacting us tonight. With today's tire changing machines, cracking a rim during removal and installation is incredibly difficult to do - however, it is possible. If the tire is busted off the bead (which is a...
Question
New LED Headlights stopped working
hi Soren. Thanks for contacting us tonight. My question to you would be whether or not this is an OEM or aftermarket LED headlight. If it's aftermarket (even if it's recommended for Mercedes-Benz), compatibility issues like you're describing can often...
Question
I have a new 2017 mercedes c300 and wanted to know about switching it over to LED headlights. Is this something that I have to sw
Hi Adam. Thanks for the question today. I believe Mercedes-Benz recommends swapping the headlamp housing when converting to LED bulbs on their C300. However, you might want to contact an MB dealership to get clarification from them, as I believe...
Question
i want to replace engine mounts of 2008 c300 4matic, so let me know how many and where engine mounts are on the car
Using Mercedes Benz' nomenclature, there is a front left, front right and rear (transmission) mount. If you are trying to diagnose and/resolve a vibration problem in the vehicle do not buy aftermarket motor mounts. The original mounts installed in the...
Question
2008 mbenz 300 4matic blower motor cover slides up and down repeatedly for 15min or more after shutting engine off and removing ke
Hi Vicki. Thanks for contacting us today. I think this is an example where a Mercedes-Benz specialist is better served to recommend the right repair, as this should be inspected personally by the mechanic to recommend the right repair. I...
Question
Q: Shaking
Shaking or vibration may be caused by many different things such as faulty spark plugs, poor fuel pressure or misfires. Other things such as a faulty idle air control valve may cause the engine idle to drop below the normal...
Question
Q: Low Coolant Light
This would depend on what exact coolant was used in the vehicle. There are many coolants that are made that are supposed to be Universal and for all vehicles. If you use Universal coolant in your vehicle, it is very...
Question
I have a 2010 Merceds Benz C300, the headlight will turn off for a few seconds then come back on while I'm driving. what can it be
Hi Thomas. Thanks for sending your question today. Typically, this type of issue is caused by a loose headlight electrical harness or an electrical short somewhere from the light switch to the headlight itself. The best way to determine the...
Question
2010 Mercedes C300. Car will start, but steering wheel is locked and red battery light is on dashboard
The battery warning light signifies an electrical problem and such could be in the battery, the alternator, the charging circuit or possibly (but less likely) elsewhere in the vehicle electrical system. There might be a relationship between the warning light...
Question
My mercedes c300 says collision prevention assist plus inoperative
The warning light means there is an electrical malfunction in the collision avoidance system and that could involve sensors, wiring, the control computer and so forth. Anybody who fixes it (whether you, a Mechanic, etc.) has to have in hand...

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