2010 Mercedes-Benz S400
Problems, Recalls & Reliability Report
Quick Summary
The 2010 Mercedes-Benz S400 has 25 owner complaints filed with NHTSA — that's 0.3x the segment average of 80. The most common issue is electrical problems (40% of all complaints), specifically: s400 is a hybrid from mercedes benz and when driven over 40 miles in distance then the ac will turn on no matter what. we tried to turn it off but can not. mb dealer told us it is normal operations but this is a major issue as in the winter the ac also turns on. this has happened many times and mb d.
25
Total Complaints
0
Recalls Issued
—/5
Safety Stars
0.3x
vs Segment Avg
Known Problems
ELECTRICAL
10 complaints- • S400 IS A HYBRID FROM MERCEDES BENZ AND WHEN DRIVEN OVER 40 MILES IN DISTANCE THEN THE AC WILL TURN ON NO MATTER WHAT. WE TRIED TO TURN IT OFF BUT CAN NOT. MB DEALER TOLD US IT IS NORMAL OPERATIONS BUT THIS IS A MAJOR ISSUE AS IN THE WINTER THE AC ALSO TURNS ON. THIS HAS HAPPENED MANY TIMES AND MB D
- • I WAS DRIVING, TRYING TO GET OFF THE HIGHWAY, I TOOK EXIT WHICH IS A 270 DEGREE CIRCLE WITH SHARP TURNS, I AM NOT DRIVING FAST AT ALL BUT THE CAR JUST STALLED WHILE DRIVING, STEERING WHEEL LOCKED AND I ALMOST FALL DOWN THE HILL, I ALMOST DIED, THIS PRODUCT HAS SERIOUS QUALITY ISSUES. I WAS DRIVIN
- • VEHICLE BEGAN TO CUT COMPLETELY OFF WHEN STOPPED AT A RED LIGHT OR STOP SIGN. IT BEGAN TO TAKE LONGER AND LONGER TO RESTART WHEN TURNED OFF AND ON. EVENTUALLY THE VEHICLE WOULD NOT START AT ALL. WHEN TAKEN TO THE DEALER, I WAS INFORMED THAT THE POWER CONTROL MODULE WAS BAD AND THE COST TO REPLAC
“S400 IS A HYBRID FROM MERCEDES BENZ AND WHEN DRIVEN OVER 40 MILES IN DISTANCE THEN THE AC WILL TURN ON NO MATTER WHAT. WE TRIED TO TURN IT OFF BUT CAN NOT. MB DEALER TOLD US IT IS NORMAL OPERATIONS BUT THIS IS A MAJOR ISSUE AS IN THE WINTER THE AC ALSO TURNS ON. THIS HAS HAPPENED MANY TIMES AND MB D”
— NHTSA complaint filing
ENGINE
4 complaints- • PURCHASED A MERCEDES BENZ S400 HYBRID LAST YEAR WITH 20,000 MILES DRIVEN. THIS CAR RETAILS NEW FOR $119,000. THE CAR HAS NOW BEEN IN THE SHOP AT EWING MERCEDES BENZ OF PLANO SINCE MAY 2013 OVER 6 TIMES FOR THE SAME ENGINE LIGHT AND CODE. THEY ARE UNABLE TO REPAIR THE VEHICLE AFTER EXTENSIVE TESTING
- • FIRST TROUBLE: ENGINE DID NOT START ON 11/13/2010. THE TROUBLE HAPPENED WITHIN THE FIRST MONTH AFTER DELIVERY. TWO REPAIRMEN ON THE ROAD SERVICE SHOWED AND COULD NOT FIX THE PROBLEM. THIRD REPAIRMAN WHO SAID AS THE NUMBER-ONE REPAIRMAN ON THE ROAD SERVICE FINALLY FIXED THE PROBLEM, TAKING ABOUT 3 HO
- • THE S400 HYBRID HAS A HABIT OF STALLING WHEN IN A STOP POSITION. THIS REQUIRES A COMPLETE RE-START AT A STOP LIGHT OR AFTER HAVING COME TO A COMPLETE STOP. IN ADDITION THE AIR CONDITIONING SHUTS OFF AND DOES NOT COME BACK ON UNTIL YOU STOP FOR A FEW MINUTES AND RE-START THE VEHICLE. THE CAR STA
“PURCHASED A MERCEDES BENZ S400 HYBRID LAST YEAR WITH 20,000 MILES DRIVEN. THIS CAR RETAILS NEW FOR $119,000. THE CAR HAS NOW BEEN IN THE SHOP AT EWING MERCEDES BENZ OF PLANO SINCE MAY 2013 OVER 6 TIMES FOR THE SAME ENGINE LIGHT AND CODE. THEY ARE UNABLE TO REPAIR THE VEHICLE AFTER EXTENSIVE TESTING ”
— NHTSA complaint filing
FUEL SYSTEM
3 complaints- • PURCHASED A MERCEDES BENZ S400 HYBRID LAST YEAR WITH 20,000 MILES DRIVEN. THIS CAR RETAILS NEW FOR $119,000. THE CAR HAS NOW BEEN IN THE SHOP AT EWING MERCEDES BENZ OF PLANO SINCE MAY 2013 OVER 6 TIMES FOR THE SAME ENGINE LIGHT AND CODE. THEY ARE UNABLE TO REPAIR THE VEHICLE AFTER EXTENSIVE TESTING
- • CAR STALLS CONSTANTLY, LOOSE FUEL CAP WARNING COMES ON, CHECK ENGINE LIGHT COMES ON. I HAVE REPLACED THE FUEL CAP, CHECKED VEHICLE CODES, BUT CANNOT GET THE ISSUE IDENTIFIED. A VEHICLE STALLING LIKE THIS IS A TREMENDOUS SAFETY HAZARD, AND IT MAY BE POSSIBLE THAT THERE IS AN ISSUE WITH THE FUEL DELIV
- • STRONG GAS ORDERS FROM INTERIOR AFTER FILL UP. STATIONARY, IN MOTION, STOPPED. TO THE POINT OF NAUSEA AND LIGHT HEADEDNESS. 2011 IS ON RECALL LIST FOR GAS PUMP AND SENDER REPLACEMENT, PLUS WARRANTY EXTENSION TO 15 YEARS FOR THIS PROBLEM. THIS NEEDS TO ALSO INCLUDE THE 2010 S400 HYBRIDS VEHICL
“PURCHASED A MERCEDES BENZ S400 HYBRID LAST YEAR WITH 20,000 MILES DRIVEN. THIS CAR RETAILS NEW FOR $119,000. THE CAR HAS NOW BEEN IN THE SHOP AT EWING MERCEDES BENZ OF PLANO SINCE MAY 2013 OVER 6 TIMES FOR THE SAME ENGINE LIGHT AND CODE. THEY ARE UNABLE TO REPAIR THE VEHICLE AFTER EXTENSIVE TESTING ”
— NHTSA complaint filing
OTHER
3 complaints- • S400 IS A HYBRID FROM MERCEDES BENZ AND WHEN DRIVEN OVER 40 MILES IN DISTANCE THEN THE AC WILL TURN ON NO MATTER WHAT. WE TRIED TO TURN IT OFF BUT CAN NOT. MB DEALER TOLD US IT IS NORMAL OPERATIONS BUT THIS IS A MAJOR ISSUE AS IN THE WINTER THE AC ALSO TURNS ON. THIS HAS HAPPENED MANY TIMES AND MB D
- • I WAS DRIVING, TRYING TO GET OFF THE HIGHWAY, I TOOK EXIT WHICH IS A 270 DEGREE CIRCLE WITH SHARP TURNS, I AM NOT DRIVING FAST AT ALL BUT THE CAR JUST STALLED WHILE DRIVING, STEERING WHEEL LOCKED AND I ALMOST FALL DOWN THE HILL, I ALMOST DIED, THIS PRODUCT HAS SERIOUS QUALITY ISSUES. I WAS DRIVIN
- • 2010 S400 HYBRID WONT START FIRST INSTANCE WAS LESS THAN 24 HOUR OF PURCHASING CAR FROM LOCAL DEALER. LIGHTS ALL ON BUT NO CRANK. STARTED AFTER AND TWO WEEKS LATER IT HAD TO BE TOWED BECAUSE IT COMPLETELY WONT START. MBUSA FORUM CHAT AND SEVERAL SOCIAL MEDIA GROUPS ALL AROUND THE WORLD HAS THE SAME
“S400 IS A HYBRID FROM MERCEDES BENZ AND WHEN DRIVEN OVER 40 MILES IN DISTANCE THEN THE AC WILL TURN ON NO MATTER WHAT. WE TRIED TO TURN IT OFF BUT CAN NOT. MB DEALER TOLD US IT IS NORMAL OPERATIONS BUT THIS IS A MAJOR ISSUE AS IN THE WINTER THE AC ALSO TURNS ON. THIS HAS HAPPENED MANY TIMES AND MB D”
— NHTSA complaint filing
ELECTRONIC SYSTEMS
1 complaints- • I WAS DRIVING, TRYING TO GET OFF THE HIGHWAY, I TOOK EXIT WHICH IS A 270 DEGREE CIRCLE WITH SHARP TURNS, I AM NOT DRIVING FAST AT ALL BUT THE CAR JUST STALLED WHILE DRIVING, STEERING WHEEL LOCKED AND I ALMOST FALL DOWN THE HILL, I ALMOST DIED, THIS PRODUCT HAS SERIOUS QUALITY ISSUES. I WAS DRIVIN
“I WAS DRIVING, TRYING TO GET OFF THE HIGHWAY, I TOOK EXIT WHICH IS A 270 DEGREE CIRCLE WITH SHARP TURNS, I AM NOT DRIVING FAST AT ALL BUT THE CAR JUST STALLED WHILE DRIVING, STEERING WHEEL LOCKED AND I ALMOST FALL DOWN THE HILL, I ALMOST DIED, THIS PRODUCT HAS SERIOUS QUALITY ISSUES. I WAS DRIVIN”
— NHTSA complaint filing
Estimated Repair Costs
Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.
🔍 Pre-Purchase Inspection Checklist
Based on 25 owner complaints for this specific year, here's what to check or ask about:
- ☐ELECTRICAL: S400 IS A HYBRID FROM MERCEDES BENZ AND WHEN DRIVEN OVER 40 MILES IN DISTANCE THEN THE AC WILL TURN ON NO MATTER WHAT. WE TRIED TO TURN IT OFF BUT CAN NOT. MB DEALER TOLD US IT IS NORMAL OPERATIONS BUT THIS IS A MAJOR ISSUE AS IN THE WINTER THE AC ALSO TURNS ON. THIS HAS HAPPENED MANY TIMES AND MB D
Typically appears around 50K miles. Repair cost ~$500
- ☐ENGINE: PURCHASED A MERCEDES BENZ S400 HYBRID LAST YEAR WITH 20,000 MILES DRIVEN. THIS CAR RETAILS NEW FOR $119,000. THE CAR HAS NOW BEEN IN THE SHOP AT EWING MERCEDES BENZ OF PLANO SINCE MAY 2013 OVER 6 TIMES FOR THE SAME ENGINE LIGHT AND CODE. THEY ARE UNABLE TO REPAIR THE VEHICLE AFTER EXTENSIVE TESTING
Typically appears around 50K miles. Repair cost ~$500
- ☐FUEL SYSTEM: PURCHASED A MERCEDES BENZ S400 HYBRID LAST YEAR WITH 20,000 MILES DRIVEN. THIS CAR RETAILS NEW FOR $119,000. THE CAR HAS NOW BEEN IN THE SHOP AT EWING MERCEDES BENZ OF PLANO SINCE MAY 2013 OVER 6 TIMES FOR THE SAME ENGINE LIGHT AND CODE. THEY ARE UNABLE TO REPAIR THE VEHICLE AFTER EXTENSIVE TESTING
Typically appears around 50K miles. Repair cost ~$500
- ☐OTHER: S400 IS A HYBRID FROM MERCEDES BENZ AND WHEN DRIVEN OVER 40 MILES IN DISTANCE THEN THE AC WILL TURN ON NO MATTER WHAT. WE TRIED TO TURN IT OFF BUT CAN NOT. MB DEALER TOLD US IT IS NORMAL OPERATIONS BUT THIS IS A MAJOR ISSUE AS IN THE WINTER THE AC ALSO TURNS ON. THIS HAS HAPPENED MANY TIMES AND MB D
Typically appears around 50K miles. Repair cost ~$500
- ☐General: Get a pre-purchase inspection from an independent mechanic ($100-$200)
Mercedes-Benz S400 — Year Comparison
How does 2010 compare to other years? Fewer complaints = more reliable.
Full years-to-avoid analysis →NHTSA Safety Rating
No NHTSA safety rating available
At a Glance
- Complaints
- 25
- Recalls
- 0
- Fire reports
- 0
- Crash reports
- 0
- Injury reports
- 0
- Segment avg
- 80
Check a Specific VIN
See recalls for YOUR 2010 Mercedes-Benz S400