2012 Mercedes-Benz ML350

Problems, Recalls & Reliability Report

Average

Quick Summary

The 2012 Mercedes-Benz ML350 has 92 owner complaints filed with NHTSA — that's 1.1x the segment average of 80. The most common issue is engine problems (25% of all complaints), specifically: tl* the contact owns a 2012 mercedes benz ml 350. the contact stated that the vehicle would not start until after several attempts. while driving, the vehicle began to lose power. the vehicle was taken to the dealer for diagnosis, who stated that they needed to replace the pistons in the engine. the.

6 crash reports 4 injuries

Total Complaints

Recalls Issued

—/5

Safety Stars

1.1x

vs Segment Avg

Known Problems

ENGINE

23 complaints

25%

• TL* THE CONTACT OWNS A 2012 MERCEDES BENZ ML 350. THE CONTACT STATED THAT THE VEHICLE WOULD NOT START UNTIL AFTER SEVERAL ATTEMPTS. WHILE DRIVING, THE VEHICLE BEGAN TO LOSE POWER. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSIS, WHO STATED THAT THEY NEEDED TO REPLACE THE PISTONS IN THE ENGINE. THE
• VEHICLE LOSES POWER AFTER A FEW HOURS OF DRIVING. THIS PROBLEM DOES NOT SHOW ANY ERROR MESSAGE ON THE DASHBOARD, AND THE DEALER CANNOT FIX THIS PROBLEM AFTER MULTIPLE ATTEMPTS. LAST TRIP TO THE DEALER WHICH WAS 2 WEEKS AGO, THEY INSISTED THAT NOTHING WAS WRONG. HERE ARE EXAMPLES OF HOW SERIOUS THE
• THIS HAPPENED AS A NEW CAR, ONLY NOW, AFTER IT HAPPENED ABOUT 5 OR 6 TIMES, WE CAME TO KNOW THIS WEIRED AND DANGEROUS PROBLEM-IT LOSES THE POWER AT A STOP; AT RED LIGHT, AND EVEN WHEN WE TRIED TO START TO MOVE. WHEN IT HAPPENED, AT FIRST SEVERAL TIMES, WE WERE THINKING MAYBE I DID SOMETHING, AFTER 5

Typical onset: 50K miles Est. repair: $500💥 1 crashes

“TL* THE CONTACT OWNS A 2012 MERCEDES BENZ ML 350. THE CONTACT STATED THAT THE VEHICLE WOULD NOT START UNTIL AFTER SEVERAL ATTEMPTS. WHILE DRIVING, THE VEHICLE BEGAN TO LOSE POWER. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSIS, WHO STATED THAT THEY NEEDED TO REPLACE THE PISTONS IN THE ENGINE. THE”

— NHTSA complaint filing

FUEL SYSTEM

17 complaints

18%

• MY WIFE WAS DRIVING MY ML350 ON THE FREEWAY WITH MY 7 YEAR OLD SON IN THE BACK. SHE SAID THE VEHICLE STARTED TO SHAKE IN AN UNUSUAL WAY SO SHE DECIDED TO GET OFF AT THE NEAREST EXIT AND WHEN SHE APPLIED THE BRAKES ON THE OFF RAMP THE CAR'S ENGINE STOPPED. ENGINE LIGHT CAME ON, DASH READ INOPERABLE
• I STOPPED AT A RED LIGHT. THE 2012 ML350 ENGINE STALLED. I COULD HAVE BEEN IN A ACCIDENT. LUCKILY, THE CAR BEHIND ME DID NOT HIT ME. I HAD TO START THE ENGINE AGAIN. *TR
• MY ML350 IS OVER OVER 71000, NO WARRANTY. I NOTICED THAT IT HAS BEEN STALLED SEVERAL TIMES TILL INCIDENT. LAST TUESDAY, SUDDENLY CAR ENGINE STOPPED IN THE USPS PARKING LOTS, MIDDLE OF DRIVEWAY, NO MOVING. IT WAS AROUND 6PM, I CALLED ROAD SERVICE AND FIRST GUY CAME WHO DIDN'T KNOW ABOUT MB, AND 2ND G

Typical onset: 50K miles Est. repair: $500💥 1 crashes

“MY WIFE WAS DRIVING MY ML350 ON THE FREEWAY WITH MY 7 YEAR OLD SON IN THE BACK. SHE SAID THE VEHICLE STARTED TO SHAKE IN AN UNUSUAL WAY SO SHE DECIDED TO GET OFF AT THE NEAREST EXIT AND WHEN SHE APPLIED THE BRAKES ON THE OFF RAMP THE CAR'S ENGINE STOPPED. ENGINE LIGHT CAME ON, DASH READ INOPERABLE”

— NHTSA complaint filing

ELECTRICAL

11 complaints

12%

• WHEN THE CAR HAS BEEN RUNNING FOR A WHILE THE DIRECTIONAL SIGNALS STOP WORKING
• ON OCCASION THE BLIND SPOT ASSIST BECOMES INOPERATIVE. FREQUENTLY WHEN THIS OCCURS, IT ALSO DEACTIVATES THE TURN SIGNALS CREATING, IN MY OPINION, A VERY DANGEROUS SITUATION. EACH TIME IT'S HAPPENED IN MOTION ON AN EXPRESSWAY. I'VE CONTACTED THE LOCAL MERCEDES BENZ DEALER WHO TELLS ME THE ONLY WAY
• ON RANDOM OCCASIONS, WHILE IN MOTION AT ANY SPEED, THE MESSAGE "BLIND SPOT ASSIST IS INOPERATIVE" AND INDICATOR LIGHTS STOP WORKING. THE ONLY WAY TO CLEAR IT IS TO STOP THE VEHICLE, TURN OFF THE IGNITION AND START THE VEHICLE BACK UP.

Typical onset: 50K miles Est. repair: $500💥 1 crashes

“WHEN THE CAR HAS BEEN RUNNING FOR A WHILE THE DIRECTIONAL SIGNALS STOP WORKING”

— NHTSA complaint filing

LIGHTING

9 complaints

10%

• TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ ML350. THE CONTACT STATED THAT HEAD LIGHT WOULD NOT ILLUMINATE BEYOND TWENTY FIVE FEET, MAKING NIGHT TIME DRIVING VERY DIFFICULT. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND THE DEALER COULD NOT DETERMINE THAT THERE WAS A DEFECT. THE CONTACT STATED THAT H
• THE HEADLIGHTS ARE REALLY DIM. IT'S HARD TO SEE THE CURB IN THE NIGHT WHEN DRIVING FROM A ROAD WITH NO CURB AND ENTERING A ROAD WITH CURB. *JS
• WHEN THE CAR HAS BEEN RUNNING FOR A WHILE THE DIRECTIONAL SIGNALS STOP WORKING

Typical onset: 50K miles Est. repair: $500💥 2 crashes

“TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ ML350. THE CONTACT STATED THAT HEAD LIGHT WOULD NOT ILLUMINATE BEYOND TWENTY FIVE FEET, MAKING NIGHT TIME DRIVING VERY DIFFICULT. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND THE DEALER COULD NOT DETERMINE THAT THERE WAS A DEFECT. THE CONTACT STATED THAT H”

— NHTSA complaint filing

STEERING

6 complaints

• I AM GOING TO UHAUL TO RENT TRAILER. UHAUL IS AROUND 8 MILES FROM MY HOUSE.AFTER 7 MILES OF DRIVING ON THE ROAD SUDDENLY SHOWING ERROR MESSAGE " POWER STEERING MALFUNCTION REFER TO OPERATOR'S MANUAL" AT THAT TIME STEERING WAS SUPER SUPER SUPER HARD TO TURN. IMMEDIATELY I TURNED ON THE HAZARDOUS LIG
• WHILE TRAVELING AT 55MPH THE STEERING SUDDENLY FELT VERY STIFF AND HARD TO MOVE. HAD TO APPLY BRAKES WHEN IT SEEMED I COULDN'T NEGOTIATE A CURVE IN THE ROAD. THE STEERING RETURNED TO NORMAL SHORTLY AFTER APPLYING THE BRAKES. THE STEERING PROBLEM OCCURRED AGAIN IN A LOCAL SHOPPING CENTER PARKING L
• TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ ML350. WHILE DRIVING APPROXIMATELY 70 MPH, THE STEERING WHEEL SEIZED AND THE POWER STEERING WARNING INDICATOR ILLUMINATED. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DETERMINED THAT THE STEERING WHEEL BECAME INOPERABLE AND THE ENTIRE STEERING WHEEL AND E

Typical onset: 50K miles Est. repair: $500💥 1 crashes

“I AM GOING TO UHAUL TO RENT TRAILER. UHAUL IS AROUND 8 MILES FROM MY HOUSE.AFTER 7 MILES OF DRIVING ON THE ROAD SUDDENLY SHOWING ERROR MESSAGE " POWER STEERING MALFUNCTION REFER TO OPERATOR'S MANUAL" AT THAT TIME STEERING WAS SUPER SUPER SUPER HARD TO TURN. IMMEDIATELY I TURNED ON THE HAZARDOUS LIG”

— NHTSA complaint filing

Estimated Repair Costs

ENGINE(~50K mi)

$500

FUEL SYSTEM(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

LIGHTING(~50K mi)

$500

STEERING(~50K mi)

$500

Estimates based on average reported repair costs. Actual costs vary by location, shop, and severity.

🔍 Pre-Purchase Inspection Checklist

Based on 92 owner complaints for this specific year, here's what to check or ask about:

☐
ENGINE: TL* THE CONTACT OWNS A 2012 MERCEDES BENZ ML 350. THE CONTACT STATED THAT THE VEHICLE WOULD NOT START UNTIL AFTER SEVERAL ATTEMPTS. WHILE DRIVING, THE VEHICLE BEGAN TO LOSE POWER. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSIS, WHO STATED THAT THEY NEEDED TO REPLACE THE PISTONS IN THE ENGINE. THE
Typically appears around 50K miles. Repair cost ~$500
☐
FUEL SYSTEM: MY WIFE WAS DRIVING MY ML350 ON THE FREEWAY WITH MY 7 YEAR OLD SON IN THE BACK. SHE SAID THE VEHICLE STARTED TO SHAKE IN AN UNUSUAL WAY SO SHE DECIDED TO GET OFF AT THE NEAREST EXIT AND WHEN SHE APPLIED THE BRAKES ON THE OFF RAMP THE CAR'S ENGINE STOPPED. ENGINE LIGHT CAME ON, DASH READ INOPERABLE
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: WHEN THE CAR HAS BEEN RUNNING FOR A WHILE THE DIRECTIONAL SIGNALS STOP WORKING
Typically appears around 50K miles. Repair cost ~$500
☐
LIGHTING: TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ ML350. THE CONTACT STATED THAT HEAD LIGHT WOULD NOT ILLUMINATE BEYOND TWENTY FIVE FEET, MAKING NIGHT TIME DRIVING VERY DIFFICULT. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND THE DEALER COULD NOT DETERMINE THAT THERE WAS A DEFECT. THE CONTACT STATED THAT H
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)