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10.0

really awful
Crashes / Fires:
2 / 0
Injuries / Deaths:
2 / 0
Average Mileage:
74,478 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.

2004 Mercedes-Benz SL500 brakes problems

brakes problem

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2004 Mercedes-Benz SL500 Owner Comments

problem #8

May 012012

SL500 8-cyl

  • 60,000 miles

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

The vehicle has a bracket on top of the gas tank that comes disengaded and causes this distinctive noise which sounds like something swinging and tapping against the gas tank and I has to happen a lot due to every service I have been asked about the problem. It also has to be something with multiple vehicles due to online Mercedes owners are having the same problem. The sound is really disturbing and I would like an answer as to what to do. Thanks [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).'

- Norfolk, VA, USA

problem #7

Jan 212019

SL500

  • 61,000 miles
I submitted via fax earlier this week a formal letter to Mr. Exler the president & CEO of mbusa and, cc'd Mr. King of the NHTSA that included information about known critical safety issued these vehicles had prior to mbusa importing them to the United States. Mbusa failed to disclose these known issues and, chose to importation these vehicles violating vehicle importation rules. Yesterday-January 31, 2019 I received a call from a representative of mbusa stating he was calling on behalf of Mr. Exlers office concerning my letter. I will not be intimidated by mbusa while seeking the truth on why mbusa allowed these vehicles to enter the usa knowing these critical safety issues existed while misleading consumers and, the NHTSA. On January 21, 2019 my vehicle had what is described by mbusa as a catastrophic failure when the entire brake system failed. This failure could have killed me - and, other motorist. Mbusa has replaced the sbc unit at least 6 times and, still the issue and, other persist. The vehicle has been driven on average 4,000 miles annually. How many failures must happen before mbusa is fully investigated? they refused to provide me any information on the vehicles except the 4 year warranty period. Once I complete my research on these vehicles I will submit my findings to the NHTSA & Ms. King

- Plano, TX, USA

problem #6

Jun 222004

SL500

  • miles
Due to deterioration of the wiring harness connection or failure of the hydraulic pump, the sensotronic brake control (sbc) system may default to the hydraulic back-up mode. In the back-up mode, the driver has braking power sufficient to stop the vehicle, but greater brake pedal pressure is required and brake pedal travel will be noticeably longer. Dealers will install a bracket and replacement ground wire to the sbc pump unit on all affected vehicles. Additionally, dealers will inspect and replace the ssc pump unit in certain sl models. The Mercedes-Benz recall numbers are 2005070007 and 2005110001. Research shows only 59% of the 100% required recall was done properly by an authorized dealer. This issue was not disclosed when I purchased this car and, the required work was not done and, Mercedes said the 60 days from recall had passed - yet the reports sent to NHTSA by Mercedes Benz appears to be false data - this should be investigated.

- Plano, TX, USA

problem #5

Jan 012018

SL500

  • 131,000 miles

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

I purchased this vehicle in 2014. My brakes completely went out while driving January 1 2018. I was attempting to stop at an intersection when the the vehicle would not stop with oncoming traffic on both sides coming towards me. I immediately pressed the accelerator and sped through the intersection to avoid an accident....absolutely terrifying and without any warning whatsoever. Because the dealership was closed I was unable to seek service that day. I called Mercedes of richmond va being that was the closest dealership where I was visiting at at the time. Unfortunately I could not get an appointment until January 3rd. I had it towed that morning and they came back hours later notifying me it was in face the sbc system which needed to be replaced at the cost of $2006. I was outraged learning that mbusa knew of this issue NHTSA campaign number 04V296000 in June 2004 but closed it out in December 2013. I did not purchase the vehicle until 2014. I asked if there was anything they could do to assist me as one of the associates informed me about "good will" service where they might consider my situation and help. I was again extremely disappointed to learn they would only assist with $300 as we have 2 Mercedes and have incurred thousands of dollars in known repair issues of the few years. I am asking that mbusa accept the cost of this repair as it was a known issue that they were replacing at no cost to owner. I have 131,000 miles on the car which is under mileage for that year. They told me to ask Mercedes if they would consider assisting in any way but they said there was nothing they could do.

- Chesapeake, VA, USA

problem #4

Dec 282016

SL500

  • 61,230 miles
Brakes fail...warning light only after you have no brakes...a suicide machine in traffic

- Jacksonville, FL, USA

problem #3

Oct 242014

SL500

  • 100,560 miles
Was traveling behind another vehicle at approximately 35 mph around 6pm when traffic ahead begun to slow and stop for the traffic light signal a change, upon attempting to stop the ABS brake system failed and only gave a warning until after my vehicle rear ended the car in front of causing me bet thrown violently forward and backward which, gave rise to whiplash injury, damaging the front end of my vehicle and the rear end of the vehicle in front with similar injuries the driver of the vehicle in front of me.

- Beverly Hills, Ca, CA, USA

problem #2

Oct 242014

SL500 8-cyl

  • 100,030 miles
I was traveling in trailing a safe distance behind another vehicle at a speed of about 35 miles per hour and as we approached S traffic signal, all cars begun to slow for the yellow light in order to prepare for a safe stop. How ever, upon my attempting to stop the brakes suddenly failed and an a red warning light came on "stop" my vehicle failed to stop and I collided into the vehicle in front of me causing injury to the other driver and myself. There was never a wad ailedhning light that the ABS system was failing.

- Beverly Hillls, CA, USA

problem #1

Oct 062014

SL500

  • 82,000 miles
The contact owns a 2004 Mercedes Benz SL500. While driving approximately 2 mph, a warning light suddenly flashed that indicated that the brakes were faulty. The contact depressed the brake pedal to stop the vehicle, but the brakes malfunctioned and increased the stopping distance. The dealer stated that the electronic brake booster was faulty. The manufacturer was notified, but no solution was offered. The failure mileage was 82,000.

- Philadelphia, PA, USA

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