RoadVitals

2007 Mercedes-Benz S550 Driver assistance Problems

Owner-reported complaints naming the driver-assistance system, filed with NHTSA

Data refreshed

Driver assistance reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
9
Latest Mar 22, 2020
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
17%
of 54 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
0
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
0

What this page shows

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems. Every record below is an owner-reported complaint about the 2007 Mercedes-Benz S550 submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 9 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming driver-assistance

Shown in the owner’s own words, exactly as filed

Driver assistance
Filed Mar 22, 2020

THE CONTACT STATED THAT I PURCHASED A USED MERCEDES FROM BMW OF MOBILE. WHILE DRIVING THE CAR IT LOSES POWER. I WAS ON THE INTERSTATE AND IT LOSS POWER. I ALMOST HAD A PANIC ATTACK BECAUSE THE CAR WAS SLOWING DOWN. I HAD NO IDEA WHAT WAS GOING ON. I HAD TO MAKE MY WAY TO THE RIGHT LANE TO GET OFF THE ROAD. THE CARS WERE DRIVING 70 AND 80 MPH. THEY COULD HAVE RAMMED INTO THE BACK OF MY CAR NOT KNOWING MY CAR WAS SLOWING DOWN. I COULD HAVE BEEN KILLED DRIVING THIS DEFECTIVE VEHICLE!!! I INFORMED BMW AND THEIR TECHNICIAN SAID IT WAS THE BATTERY AND A STARTER. I PAID $600 FOR THE REPAIR. THEY WERE WRONG THE CAR STILL LOSES POWER. I HAD TO BEG AND PLEAD WITH THEM TO HAVE MERCEDES OF MOBILE DIAGNOSE THE CAR. THEY SAID THEY WOULD PAY FOR THE DIAGNOSIS BUT NOT THE REPAIRS. IF I TRADED THE CAR BACK TO THEM THEY WOULD DEDUCT THE REPAIRS FROM THE CAR. THE OTHER OPTIONS WERE TO LET IT GO BACK TO THE FINANCE COMPANY OR TAKE IT TO ANOTHER DEALERSHIP AND NOT TELL THEM WHAT GOING ON WITH THE CAR. THEY PAID MERCEDES OF MOBILE TO DIAGNOSIS IT AND THEY IMMEDIATELY STATED THE ISSUE. I WENT TO BMW TO ASK FOR A REFUND AND REPAIR BUT THEY REFUSE TO DO ANY ABOUT THE CAR LOSING POWER. CONTACTS ALSO STATES THAT THE MERCEDES WOULD PAY FOR DIAGNOSIS BUT NOT TO REPAIR. I WOULD NOT RECOMMEND THIS DEALERSHIP TO ANYONE. THEY SHOULD HAVE HAD THIS CAR CHECKED OUT THOROUGHLY AT MERCEDES IF THEY DID NOT HAVE THE APPROPRIATE KNOWLEDGE OF THE CAR. *LN *TP

NHTSA ID
11318960
Incident
Nov 22, 2019
Mileage
74,800 mi
Driver assistanceElectrical
Filed Oct 21, 2015

VEHICLE BECOMES STUCK IN GEAR WHILE DRIVING DOWN THE ROAD. WILL NOT SHIFT, SOMETIMES YOU DON'T HAVE ENOUGH POWER TO MOVE QUICKLY. FOR EXAMPLE VEHICLE WAS STUCK IN 6TH GEAR AFTER LEAVING THE HIGHWAY. I COULD NOT ACCELERATE TO MOVE THE CAR. I HAD TO SHUT THE CAR OFF TO RESET THE COMPUTER TO GET THE CAR OUT OF 6TH GEAR. THIS HAS HAPPENED AT LEAST 10 TIMES OVER THE PAST 3 MONTH PERIOD. MANY OTHER OWNERS OF THIS CAR HAVE EXPERIENCED THE SAME TRANSMISSION FAILURE AND THAT IS VERY DANGEROUS BECAUSE THE CAR LOSE POWER WHEN IT IS STUCK IN A GEAR. THE ONLY WAY TO FIX THE PROBLEM IS TO SHUT OFF THE CAR AND RESTART IT. MERCEDES BENZ SHOULD BE HELD RESPONSIBLE FOR THIS ISSUE.

NHTSA ID
10783867
Incident
Oct 17, 2015
Driver assistancePowertrain (other)
Filed Sep 1, 2014

VEHICLE BECOMES STUCK IN GEAR WHILE DRIVING DOWN THE ROAD. WILL NOT SHIFT, SOMETIMES YOU DON'T HAVE ENOUGH POWER TO MOVE QUICKLY. FOR EXAMPLE VEHICLE WAS STUCK IN 6TH GEAR AFTER LEAVING THE HIGHWAY. I COULD NOT ACCELERATE TO MOVE THE CAR. I HAD TO SHUT THE CAR OFF TO RESET THE COMPUTER TO GET THE CAR OUT OF 6TH GEAR. THIS HAS HAPPENED AT LEAST 10 TIMES OVER THE PAST 3 MONTH PERIOD. MANY OTHER OWNERS OF THIS CAR HAVE EXPERIENCED THE SAME TRANSMISSION FAILURE AND THAT IS VERY DANGEROUS BECAUSE THE CAR LOSE POWER WHEN IT IS STUCK IN A GEAR. THE ONLY WAY TO FIX THE PROBLEM IS TO SHUT OFF THE CAR AND RESTART IT. MERCEDES BENZ SHOULD BE HELD RESPONSIBLE FOR THIS ISSUE. *TR

NHTSA ID
10629934
Incident
Jun 3, 2014
Mileage
68,400 mi
Driver assistancePowertrain (other)
Filed Aug 22, 2014

2007 S550, 7-SPEED AUTOMATIC TRANSMISSION, 57,000 MILES. STARTED ABOUT 6-8 MONTHS AGO. EXPERIENCING VERY ROUGH JOLTING TYPE SHIFTING, MOST COMMONLY OCCURS AFTER BEING PARKED ON AN INCLINE OR DECLINE. OCCURS WHEN DRIVING UP OR DOWN AN INCLINE. ALSO, OCCURS ON THE FREEWAY OR AFTER USING CRUISE CONTROL. TRANSMISSION SHIFTS FROM FIRST TO SECOND GEAR AND STAYS THERE UNTIL IT'S RESTARTED. REQUIRES TURNING OFF THE CAR WAITING A FEW SECONDS AND RESTARTING TO RESET THE GEARS. CHECK ENGINE LIGHT NOW STARTING TO COME ON.VERY DANGEROUS WHEN DRIVING IN HEAVY TRAFFIC OR ON THE FREEWAY. AFTER RESEARCHING THIS ISSUE I CANNOT BELIEVE IT SIMPLY HASN'T BEEN RECALLED. THIS IS A VERY DANGEROUS ISSUE...I WILL NOT ALLOW MY WIFE TO EVEN DRIVE THE CAR UNLESS I AM WITH HER.----MANY FORUMS ARE SUGGESTING A VALVE BODY REPLACEMENT. APPEARS TO BE A VERY COMMON ISSUE WITH THESE VEHICLE. LOCATED A CLASS ACTION LAWSUIT THAT UNFORTUNATELY WAS DISMISSED DUE TO THE COMPLAINT CITING FRAUD. I DON'T BELIEVE MERCEDES SOLD THESE VEHICLES KNOWING THE TRANSMISSION WAS FAULTY. I WOULD JUST EXPECT THEM AFTER RECEIVING NUMEROUS COMPLAINTS TO OFFER THEIR CLIENTS A REPAIR OPTION VIA RECALL. TO DATE I AM NOT AWARE OF ONE. I HAVE OWNED 4 MERCEDES IN MY LIFETIME, 38 YEARS OLD AND HAD A FEW MINOR ISSUE HERE AND THERE BUT NEVER ANYTHING LIKE THIS. SERVICE HAS ALWAYS BEEN GREAT BUT NOW THAT I AM OUT OF WARRANTY I AM LEFT OUT IN THE COLD. NOT GOOD FOR BUSINESS IN MY OPINION AND VERY UNSAFE FOR ANYONE ON THE ROAD WHILE A MERCEDES OWNER IS EXPERIENCING THIS ISSUE. *TR

NHTSA ID
10627631
Incident
Aug 22, 2014
Mileage
57,650 mi
Driver assistanceElectrical
Filed Aug 5, 2014

I WAS DRIVING MY S550 AND CAME TO A RED LIGHT. I STOPPED AT THE LIGHT AND WHEN IT TURNED GREEN, I TOOK MY FOOT OFF THE BRAKES AND PRESSED THE ACCELERATOR, BUT THERE WAS TO RESPONSE TO PRESSING THE ACCELERATOR. THE CAR RPMS WERE INCREASING BUT THE VEHICLE WAS CRAWLING AT LESS THAN 5MPH. THIS LED TO ME PULLING OVER AND PARKING THE VEHICLE AND TURNING IT OFF. I WAITED 5 MINUTES AND THEN RESTARTED IT AND IT BEGAN TO WORK NORMALLY. THE SECOND TIME THIS HAPPENED WAS WHILE MAKING A LEFT TURN, I PRESSED THE GAS PEDAL AND THERE WAS NO RESPONSE AND THE CAR WAS REVVING BUT TRAVELING LESS THAN 5 MPH WITH ONCOMING TRAFFIC HAVING TO STOP SHORT TO PREVENT CRASHING INTO ME WHILE I WAS MAKING THE LEFT TURN. THIS WAS AGAIN RESOLVED WITH ME PARKING THE VEHICLE, TURNING IT OFF AND THEN RESTARTING IT. AFTER THE SECOND TIME THIS OCCURRED OUT OF NO WHERE I DECIDED ITS A VERY DANGEROUS SAFETY ISSUE. *TR

NHTSA ID
10618927
Incident
Aug 1, 2014
Driver assistanceEnginePowertrain (other)
Filed Apr 26, 2014

I WAS DRIVING MY S550 AND CAME TO A RED LIGHT. I STOPPED AT THE LIGHT AND WHEN IT TURNED GREEN, I TOOK MY FOOT OFF THE BRAKES AND PRESSED THE ACCELERATOR, BUT THERE WAS TO RESPONSE TO PRESSING THE ACCELERATOR. THE CAR RPMS WERE INCREASING BUT THE VEHICLE WAS CRAWLING AT LESS THAN 5MPH. THIS LED TO ME PULLING OVER AND PARKING THE VEHICLE AND TURNING IT OFF. I WAITED 5 MINUTES AND THEN RESTARTED IT AND IT BEGAN TO WORK NORMALLY. THE SECOND TIME THIS HAPPENED WAS WHILE MAKING A LEFT TURN, I PRESSED THE GAS PEDAL AND THERE WAS NO RESPONSE AND THE CAR WAS REVVING BUT TRAVELING LESS THAN 5 MPH WITH ONCOMING TRAFFIC HAVING TO STOP SHORT TO PREVENT CRASHING INTO ME WHILE I WAS MAKING THE LEFT TURN. THIS WAS AGAIN RESOLVED WITH ME PARKING THE VEHICLE, TURNING IT OFF AND THEN RESTARTING IT. AFTER THE SECOND TIME THIS OCCURRED OUT OF NO WHERE I DECIDED ITS A VERY DANGEROUS SAFETY ISSUE. *TR

NHTSA ID
10585032
Incident
Apr 10, 2014
Mileage
136,000 mi
Driver assistance
Filed Mar 1, 2012

VEHICLE IS STOPPED AT TRAFFIC LIGHT WITH DRIVER'S FOOT ON BRAKE. ENGINE REVS UP FOR A MOMENT AND VEHICLE LURCHES FORWARD. HAPPENED AT TWO STOPS AT LIGHTS WITHIN A FEW MINUTES. *TR

NHTSA ID
10449937
Incident
Feb 27, 2011
Mileage
60,000 mi
Driver assistance
Filed Apr 28, 2011

TL*THE CONTACT OWNS A 2007 MERCEDES S550. THE CONTACT NOTICED THAT WHILE IDLE IN TRAFFIC IF HE REMOVED HIS FOOT OFF OF THE BRAKE PEDAL OR ACCELERATOR PEDAL IT WOULD SURGE FORWARD. THE FAILURE OCCURRED EVERY TIME HE DROVE THE VEHICLE AND WAS IDLE IN TRAFFIC. THE DEALER WAS AWARE OF THE FAILURE; HOWEVER, HE WAS UNABLE TO DUPLICATE THE FAILURE. THE MANUFACTURER INSPECTED THE VEHICLE AND ADVISED THE CONTACT TO DRIVE IN SECOND GEAR RATHER THAN FIRST. NO REPAIRS WERE PERFORMED. THE CURRENT MILEAGE WAS 24,366 AND THE FAILURE MILEAGE WAS 22,895. UPDATED 5/9/11 *CN UPDATED 05/18/11 UPDATED 06/01/11*LJ *TR

NHTSA ID
10398101
Incident
Jul 1, 2010
Mileage
22,895 mi
Driver assistance
Filed Dec 20, 2007

TL*THE CONTACT OWNS A 2007 MERCEDES BENZ S550. WHILE DRIVING 65 MPH, THE VEHICLE LUNGED FORWARD AND BACKWARDS AND THEN STOPPED WITHOUT WARNING. THE ENGINE REMAINED RUNNING; HOWEVER, THE VEHICLE WOULD NOT ACCELERATE. AS OF DECEMBER 20, 2007, THE DEALER HAD NOT INSPECTED THE VEHICLE. THE CURRENT AND FAILURE MILEAGES WERE 32,000. UPDATED 01/17/08 *BF THE CONSUMER STATED IT HAS BEEN DETERMINED BY THE ELECTRONIC TRANSMISSION EXPERT THERE WAS MASSIVE INTERNAL FAILURE, AND CAN NOT DETERMINED WHETHER THERE WAS A DEFECTIVE PART OR COMPUTER FAILURE. UPDATED 01/17/08 *TR

NHTSA ID
10212406
Incident
Dec 19, 2007
Mileage
33,000 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Other components reported on this vehicle

Categories with enough reports to have a page of their own

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .