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10.0

really awful
Crashes / Fires:
1 / 3
Injuries / Deaths:
0 / 0
Average Mileage:
59,775 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.

2010 Mercedes-Benz C300 electrical problems

electrical problem

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2010 Mercedes-Benz C300 Owner Comments (Page 1 of 4)

problem #77

Mar 172023

C300

  • miles

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

Rusted rear sub frame that needs to be replaced. Premature rusting that Mercedes needs to repair at no cost. Also, premature battery drain on new battery. Needs to be fixed by Mercedes at no cost.

- Chevy Chase, MD, USA

problem #76

Jul 192022

C300

  • miles
Power Seat Button Failed.

- Greensboro, NC, USA

problem #75

Apr 182022

C300

  • miles
My husband drove my car home from work on April 18th 2022 and it was a bad rain storm that everyone. He had to drive through a couple of big rain storms. Soon afterwards he got around the corner from the house and the electric system failed lights started going off everywhere in the car, he lost steering and couldn-??t see and almost crashed and got the car home safely but it wouldn-??t shut off so he had to disconnect the battery for the car to shut off. On April 22 nd the car was towed to the dealership because it wasn-??t driveable and they check out the car and discovered water under the carpeting of the drivers seat near the wiring of the car. I submitted an insurance claim and an adjuster went out to see the damage and his thought is that it-??s due to a known problem for this car that-??s been reported by many people with this same vehicle. The Mercedes Benz c300- 2010-2014 years. I checked online and apparently many people have reported this same issue water underneath the car due to bad firewall manufacturered not sealed correctly which could be a manufacturers/ safety issue. My husband was almost killed thank goodness he made it home safe that night. I believe there are many people that have had this issue and someone needs to be done for safety purposes, and I believe the insurance doesn-??t want to cover the repairs because they are blaming Mercedes-?? Benz. My cars been in the shop a month and I still have no answer from State Farm or the shop Mercedes Benz.

- Croydon, PA, USA

problem #74

Nov 162021

C300

  • miles

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

After parking my car, turned ignition off, did some work for 45 minutes I came back attempting to start the car. The car won-??t start, I am not hearing any of the normal sound that usually takes place when I place the key in ignition. Message on dashboard telling me to remove the key. Car will not start. After checking battery and calling mechanic they tell me the my steering wheel lock is bad. The ESL went bad out of nowhere. Car won-??t start, steering wheel is locked and the only way to fix it is to take it Mercedes-?? dealer and pay over $2000. I search on google and found out that this is a common issue with my 2010 C300. This is a manufacturing defect and Mercedes should recall it and pay for repair. In my case I parked my car in my garage, imagine if I was traveling on highway way and the steering wheel locks or failed on the side of busy interstate hwy. the worst part is that Mercedes dealer did nothing t warn me when I bought the car about this issue especially since it is know since 2008, and they will not allow after market parts to be installed by other mechanics. So this is defective and Mercedes should be forced to recall and replace for free. We should not wait for someone to die before this is fixed. This happened without any warning PLEASE FORCE MERCEDES TO RECALL AND FIX THE ESL NOW.

- Boynton Beach , FL, USA

problem #73

Dec 242021

C300

  • miles
During maintenance of vehicle, completely bare wires were discovered. While researching replacement options, I became aware that this is a known issue ignored by the manufacturer and that no cost effective solution exists. This is a car my son has recently purchased on his own and I am assisting in the maintenance of this "German Engineering Turd" You would have thought they learned a lesson on arrogance from the past.

- Brownstown, PA, USA

problem #72

Oct 022021

C300

  • 80,000 miles
The contact owns a 2010 Mercedes-Benz C300. The contact stated while driving approximately 55 MPH, several unknown warning lights illuminated. The vehicle was taken to a local mechanic where it was diagnosed with needing the back-circuit board to be replaced. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 80,000.

- Sammamish, WA, USA

problem #71

Nov 012020

C300

  • 151,500 miles

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

Rear driver side lights not functioning. Found brown wire meeting to circuit board with heat damage to wire and circuitboard at connection. Contact the dealer. Dealers stated recall was done on our vehicle. However this appears to have happened again. Don't know if this happened while the vehicle was in motion. Noticed warning lights indicating bad connection to brake lights and turn signals driver side rear.

- Hollister, CA, USA

problem #70

Dec 122020

C300

  • 155,500 miles
Security system disables ignition due to a failure of the esl (steering lock). Nothing is wrong with the car it just won't start.

- Nottingham, NH, USA

problem #69

Nov 062020

C300

  • 120,000 miles
I was traveling to North Carolina and pulled over to change my tire, my car would not start.leaving me stranded on the interstate. Again I arrived on North Carolina and the will not start after staying at a friend's for the night. I cannot get back to Connecticut. I researched and seen that this is an ongoing issue that is not being rectified.

- Wolcott, CT, USA

problem #68

Jun 162020

C300 6-cyl

  • 133,357 miles
While parked over night or during the day while at work the parking light come on by it self without my knowing. This drains the battery and I have to get a jump start.. this is really inconvenience. I could be anywhere and this could happen. This happens once sometime twice a month. It is not the light switch, it is always in the off position on several occasions I was able to return and turn off the light. Only one light comes on the passenger side front and rear.

- Houston, TX, USA

problem #67

May 152019

C300

  • 0 miles

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

Really cant say much cause thats how I bought the car.

- Scott City, KS, USA

problem #66

Jan 242020

C300 6-cyl

  • 100,000 miles
Key in ignition, steering wheel does not unlock. Able to get key into run and crank position with no instrument cluster lights turning on. All other electrical features to the car work (radio, power windows, seats, lights). Unable to shift car into neutral without removing gear selector shift cover.

- Philadelphia, PA, USA

problem #65

Nov 252019

C300

  • 160,000 miles
My C300 is having a eis (electrical ignition system failure). Where the key in the ignition won't start the vehicle. It will leave you stranded and won't allow you to put the car in neutral because of the amir theft lock out box. Many people are having this issue. Simple research can show you that.

- Biglerville, PA, USA

problem #64

Nov 292019

C300

  • miles
Eis, steering lock

- Suitland, MD, USA

problem #63

Jun 112019

C300

  • 71,517 miles
The C300 model has a notorious problem with electronic steering locking leaving the car mobileless. Cannot even put in neutral for towing. The car simply won't start. It will leave a motorist stranded at any time, any place and without any warning and represents a dangerous hazard to motorist's safety. Mercedes should be brought to court via class action law suit. Consumer stated car has been repaired.

- Jacksonville, FL, USA

problem #62

Dec 012018

C300

  • miles
I called Mercedes Benz dealership to make appointment, they took my information 6 months a go with out any answer the fix the recall problems

- Orlando, FL, USA

problem #61

Aug 192018

C300

  • 0 miles
Cam solenoid most C300 will stop turning on all the car does is ask U to take key of ignition.. I searched the issue and there is thousands of people having the same issue. It's not fair to consumers not to have a recall on a part that is defective that cost over a thousand to fix. Please help us resolve this matter

- Davenport, FL, USA

problem #60

Apr 082019

C300

  • miles
The ground wire for the rear brake lights is heating up. Mercedes dealer fixed this, per NHTSA recall #14V-177 but the issue is reoccurring.

- San Clemente, CA, USA

problem #59

Jan 242019

C300

  • 80,000 miles
Esl module failure(brushes of the substandard electrical motor go bad) leaves the car inoperable. Almost all C300 and similar models will experience this failure before they reach 80,000 miles. The module is buried deeply into the car yet it would fail with certainty. The mass failure of the module would suggest that there would be a recall, nevertheless Mercedes-Benz(mb) is pretending the problem doesn't exist and owners are often left stranded on parking lots with an useless car and stuck with a bill of $2000 for something that is clearly a mb design and engineering fault.

- Concord, CA, USA

problem #58

Feb 272019

C300

  • 63,690 miles
Steering wheel locked in garage. "remove key from ignition" is message on instrument cluster. Car will not start. This car has less than 64K miles. Car was stationary in my garage. Now I have to pay a tow company to somehow get it out of garage, as it is front end in oriented (pulled in instead of backed in), and tow to dealership, and prepare for an overly inflated repair cost.

- Turlock, CA, USA

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