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10.0

really awful
Crashes / Fires:
1 / 12
Injuries / Deaths:
2 / 0
Average Mileage:
62,176 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2009 Mercedes-Benz C300 electrical problems

electrical problem

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2009 Mercedes-Benz C300 Owner Comments (Page 4 of 10)

« Read the previous 20 complaints

problem #128

Mar 212016

C300

  • miles

A D V E R T I S E M E N T S

When leaving to catch a flight I entered my garage and unlocked my car lights came on my day was going normal. When I went to start my vehicle it would not start. It said to remove my key from the ignition. My car wouldn't start. My husband and I contacted Mercedes Benz of henderson and they had my vehicle towed to their shop. I had purchased an extended warranty with my vehicle so I was sure I would be ok. On Monday I received and call from Mercedes Benz of henderson stating that the ignition lock module needed to be replaced and it wouldn't be covered by the warranty I purchased. Since I am not a mechanic I asked what the ignition lock module was and found out it was the computer that reads my key and prevents theft. Basically the computer failed and thinks that my car is stolen. The cost to repair this is over $1,000. This is completely unfair. Mercedes cars are not cheap not to mention paying more a month to have additional warranty coverage. I am appalled that Mercedes has not done a recall on their vehicles for this issue. This is a huge safety risk for those who are traveling especially for those like myself a women traveling alone. Thank god this happened at home and not in the middle of the desert as I travel back to California often I think it is outrageous to ask customers to pay for a default/glitch in a vehicles computer. I have contacted Mercedes Benz usa to get help with this issue as there are hundreds of their customers like myself who have had and are having this same issue with the 2009 C300.

- Las Vegas, NV, USA

problem #127

Mar 172016

C300

  • 159,094 miles
Steering lock ignition assembly. There were no signs or indications that something like this was going to occur. Thankfully I reached my destination, backed up in my yard and parked. I aproached my vehicle because I wanted to fill up for the remainder of the week, I unlocked my door, placed my key in the ignition switch, and nothing happened. The radio worked and also the interior lights. I took the key out and went to use the spare key, inserted it and while the door was opened the display told me to remove the key. This could present a very dangerous situation for a female with children in an unfamiliar setting. After reading up about the problem I see that I am not alone in my troubles. I think this malfunction should included in a recall because of the safety risks involved because it could occur at any time. Thankfully I was at home.

- Calera, AL, USA

problem #126

Mar 042016

C300

  • 77,250 miles
Steering wheel locked while car was parked and would not unlock had to tow vehicle to dealer. Cost is $1300 to fix not covered under warranty dealer reduce price to $1100. This should be a recall and also a safety concern.

- Freeport, NY, USA

problem #125

Nov 162015

C300

  • 90,000 miles

A D V E R T I S E M E N T S

Takata recall from Dec 2015 first notice from dealer it's been faulty for a long time now and have concerns about my safety while driving obviously it's well past 60 days can we put some pressure on them. Fix it now!!!!

- Warwick, RI, USA

problem #124

Sep 142015

C300

  • 58,000 miles
I had to stop on I95 highway for an emergency and the car won't start again. I waited for 20 mins and the car started. Next day, my wife took the car to office and the car had same issue and was unable to start. All electrical were working but the engine was not making any noise for car startup and had to tow it to mechanic. Both the times car was stationary, but first time it was on highway due to an emergency and it was quite scary. The mechanic said the C300 have common eis failure, which need to be replaced.

- Plainsboro, NJ, USA

problem #123

Feb 012014

C300

  • 50,000 miles
The contact owns a 2009 Mercedes Benz C300. The contact stated that after putting the key into the ignition, the switch failed to operate. The vehicle was towed to a dealer where it was diagnosed that the ignition switch needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 50,000.

- Brooklyn, NY, USA

problem #122

Dec 052015

C300 6-cyl

  • 101,472 miles

A D V E R T I S E M E N T S

Car was at the parking front of my home, about to go to work, car won't start, no warning, nothing, completely dead, had to be without car for a week, repair costs 1,200. Towed to Mercedes service. Specific issues was steering column lock failed. I have so many issues with this car, lights, windows, tires, control power fails many times when car is in driving mode. So many owners has same problems, it is a safety issues why this wasn't reported and recall on this one. Thought Mercedes cars are most reliable, obviously that's not true.

- Jacksonville, FL, USA

problem #121

Dec 242015

C300 6-cyl

  • 0 miles
The vehicle did not recognize the key & didn't turn on and was not showing as parked. Called aaa to check the battery but was not it. Called towing service to get this moved to my mechanic & turns out this is due to bad electronic steering lock mechanism & only dealer can get this replaced and programed which costed me $1200. Checked & turns out this is a common problem with 2009 C300. Why is it not being recalled"?" this can be very dangerous when on the road!!! happened right before christmas so had to wait 2 days for my mechanic to check & towed again to dealer and now I'm still waiting for the car without a car for a week. This is very disappointing since I thought Mercedes was known for safety. Hope they will recall this issue & re-imburse the cost.

- Brea, CA, USA

problem #120

Dec 232015

C300

  • 94 miles
Without a warning or any dashboard lights my car did not start one morning, it made a gunck sound and absolutely nothing would turn on. My neighbor then tried to jump start the car and only the radio would turn on. I then called aaa who was the able to start my car and said the battery was good and that I should be okay to drive. (I had left nothing on the night before) I then went on a 3 hour drive during the christmas break and about and hour in the car began acting weird almost as if it wanted to shut off, and randomly a service "ABS and esp" and "air bag" and few other things would come on the dash board. As soon as I got to my destination and turned the car off the car went completely dead, this time I wouldn't even let me lock the car with the fob. I had aaa come again and they were able to with a little playing around with the key and ignition, turn it back on. My whole drive back was worse than the drive there that I even thought I wasn't going to make it home safely but I made and again as soon as I parked, the car died. Since it was the holidays I wasn't able to go to Mercedes and in the meantime for 3 days tried to get it on but nothing with both sets of keys, this time it wouldn't even let me unlock the car and the alarm kept going off when I would try to unlock it. I called aaa again to unlock and start my car but were unable to start the car, the alarm kept going off every time we put the key in the ignition. When looking at the symptoms my car is having online this seems to be a common problem in this make and model. The closest mb to me is about a 40 minute drive and will be very costly to have it towed and from the complaints read most have had to pay between 1200 -1500 to get this problem fixed. I have had my vehicle for under 2 years, 95K miles.

- New Bedford, MA, USA

problem #119

Dec 222015

C300

  • 110,000 miles
So my 2009 C300 out of nowhere decides not to turn on when I put the key into the ignition. The key unlocks the doors and the instrument panel information comes on. However, the windows will not roll up or down. The glove compartment light will not turn on and the car will not start. Initially, I tried my spare key fob (that I never use) and it did turn the engine on and I drove the car around for about 45 minutes thinking it was a battery issue. However, the moment I parked my car and turned the engine off, same problem. It would not start now with either key in the ignition. Apparently this is happening to a lot of owners with this model and year, all within this past quarter of 2015. What's going on?

- Richmond, CA, USA

problem #118

Dec 112015

C300

  • 49,000 miles

A D V E R T I S E M E N T S

I have had my 2009 Mercedes Benz C300 for 5 months now it was a birthday present on 7/11/15.I drove to the gas station filled it up put the key in the ignition it was dead.the lights and interior lights came on and the radio but the windows would not let down the horn would not blow and sunroof doesn't work towed it to Mercedes Benz arlington Texas it will cost me 1,386 for repairs plus a $290 diagnostic fee I just paid the $575 carnot I have not even had a chance to have fun in it is has 49,000 miles on it and my warranty doesn't cover any of the repairs I need my money back what a rip off I only drive it on sat. And sun.Mercedes please do the recall this is bad business ethics for Mercedes Benz owners across the globe how you going to make us fall in love with our cars then punish us for it in the end that's obsurd and just down right wrong I am outraged about this year's birthday gift and now my christmas is going to Mercedes Benz 1,386 merry christmas Mercedes Benz I know your families will have a wonderful christmas by taking my family's christmas money away from us no christmas specials on service charge for repairs for new customers this year or nothing

- Grandprairie, TX, USA

problem #117

Dec 042015

C300

  • 104,000 miles
My 2009 C300 Mercedes does not recognize the key in the ignition. I had the car towed to the dealership for repair. It's going to cost $1,200. This is a common problem with this make and model car. There should be a recall. I had to pay towing cost twice because I didn't want to leave my car in the restaurant parking lot over night. I told the car home then I had to tow it to the dealership the next day.

- Las Vegas, NV, USA

problem #116

Dec 022015

C300 6-cyl

  • 100,148 miles
The contact owns a 2009 Mercedes Benz C300. The contact stated that while attempting to start the vehicle, it failed to start. The contact was informed by an independent mechanic that the failure occurred due to a failure in the electronic ignition switch. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 100,148.

- Jacksonville, FL, USA

problem #115

Aug 032015

C300

  • 100,000 miles
The contact owns a 2009 Mercedes Benz C300. The contact stated that while driving at 30 mph, the engine failed. The vehicle was not able to restart. The vehicle was towed to the dealer where it was diagnosed that the ignition switch needed to be replaced. The vehicle was repaired; however, the failure recurred. The manufacturer was made aware of the failure. The approximate failure mileage was 100,000.

- Houston, TX, USA

problem #114

Nov 272015

C300

  • 78,000 miles
I bought this car 27 days ago. Friday night, I opened my garage door and got in. It would not turn on. After getting it inspected, I was given the news about the electronic ignition switch. After doing some research online, I was baffled by how many people with identical cars dished out thousands to pay for the repair from the dealership. What was most surprising is how it seems to happen at just about 80K miles, like clockwork. My car has 78K miles. This repair won't be covered by the bumper to bumper warranty that I had just spent thousands on. Why is there not a recall yet? this is an extremely common, consistent problem among these cars. I should not have to pay nearly $2,000 just because my car is at 80,000 miles.

- Streamwood, IL, USA

problem #113

Nov 252015

C300

  • 140,000 miles
My C300 was functioning perfectly with no issues. When I came out to start the car, it would not recognize the key. I had it towed to a dealer and they informed me that it's the electronic steering lock fail. I looked this up and it is something very common with the 2009 model. There are several post on the internet asking for this to be a recall item.

- Landover, MD, USA

problem #112

Nov 142015

C300

  • 89,000 miles
My car all of the sudden wouldn't start. I called roadside assistance and they were unable to jump the car, the battery is fine. I had to have the car towed to Mercedes-Benz of chandler and they diagnosed the issue as a steering lock electrical fault. The steering lock was replaced at a cost to me of $1065.33 (invoice #mbcs314273). Upon researching the issue on the internet, this appears to be a common problem- many other folks reported the same or very similar (ignition switch) issue: mbworld.org/forums/C-class-W204/438212-2011-C300-towed-dealer-ignition-switch.html

- Chandler, AZ, USA

problem #111

Nov 132015

C300

  • 95,000 miles
The contact owns a 2009 Mercedes Benz C300. While attempting to start the vehicle, it would not start. The vehicle was towed to the dealer where it was diagnosed that the electronic ignition switch needed to be replaced and reprogrammed. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 95,000.

- Long Beach, CA, USA

problem #110

Nov 162015

C300

  • 122,000 miles
Drove my 2009 Mercedes C300 sport to emissions station for testing. The tech turned off the car and then attempted to restart in order to start/complete emissions testing and the car would not start. The steering wheel was locked. The key would turn but would not start the vehicle. Turning the key resulted in operable interior lights, radio and the locks worked but nothing else. Had the car towed to dealer and, just like other owners, the cause is a "bad" steering lock. Costs upwards of $1000 to fix, possibly double that if the ignition module also needs replacing, which they won't know until they can replace the steering lock first. My car has 122K miles, purchased certified pre owned. I have safety concerns regarding this issue since it seems it could have occurred while I was operating the vehicle.

- Lawrenceville, GA, USA

problem #109

Nov 132015

C300

  • 90,000 miles
I have a 2009 Mercedes Benz C300 85K miles I had this car for over 2 years and I'm up to date with all the maintenance on the vehicle.I had a couple of problems with it tail light, seat belt and now this...two days ago I went to a friend house there was no problem getting there but when I turns the car off for two mins, the key wouldn't start the car. When put the key in the receiver the car read the key but none of the light on the dashboard come on and wouldn't unlock the the steering wheel and the shift knob when a open the driver side door the car with tell me to remove the key took the car to the dealer and it came out to be a bad eis switch that wasn't reading the key, it cost me $1,670 I did a research on this problem and it come out to be a very common problem for this type of car after 70K miles....they should make a recall for this mater

- Wharton, NJ, USA

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