Is the 2012 Mercedes-Benz E550 reliable?

The 2012 Mercedes-Benz E550 has 22 complaints filed with NHTSA (1.0x the segment average). Our reliability verdict: average. Most common issue: AIR BAGS problems.

What are common problems with the 2012 Mercedes-Benz E550?

Top problems: AIR BAGS (8 complaints, avg repair $500); ELECTRICAL (4 complaints, avg repair $500); STEERING (4 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2012 Mercedes-Benz E550?

No recalls have been issued for the 2012 Mercedes-Benz E550.

How much does it cost to fuel a 2012 Mercedes-Benz E550?

The 2012 Mercedes-Benz E550 gets 20 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $2400. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2012 Mercedes-Benz E550?

Estimated US average full-coverage insurance for the 2012 Mercedes-Benz E550 is approximately $1,971/year (sedan-luxury class). Actual quotes vary heavily by state, driver age, driving record, and credit — see the interactive insurance estimator on this page for state-specific pricing.

2012 Mercedes-Benz E550

Problems, Recalls & Reliability Report

Average

Quick Summary

The 2012 Mercedes-Benz E550 has 22 owner complaints filed with NHTSA — that's 1.0x the segment average of 22. The most common issue is air bags problems (36% of all complaints), specifically: tl* the contact owns a 2012 mercedes benz e550 (n/a). the contact stated that while driving at various speeds, the air bag off warning indicator illuminated with the front passenger seat occupied. the occupant's weight was approximately one hundred pounds. the malfunction recurred intermittently. th.

1 crash report 1 injury

Total Complaints

Recalls Issued

—/5

Safety Stars

1.0x

vs Segment Avg

Known Problems(top 5 of 8)

AIR BAGS

8 complaints

36%

• TL* THE CONTACT OWNS A 2012 MERCEDES BENZ E550 (N/A). THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE AIR BAG OFF WARNING INDICATOR ILLUMINATED WITH THE FRONT PASSENGER SEAT OCCUPIED. THE OCCUPANT'S WEIGHT WAS APPROXIMATELY ONE HUNDRED POUNDS. THE MALFUNCTION RECURRED INTERMITTENTLY. TH
• TL* TAKATA RECALL. THE CONTACT OWNS A 2012 MERCEDES-BENZ E550. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 17V017000 (AIR BAGS); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. TH
• TAKATA RECALL I HAVE RECEIVED A RECALL NOTICE JAN 2017 STILL NO DATE ON PARTS AND REPAIR THE CAN NOT BE RE SOLD BY A MERCEDES DEALER WITH OPEN RECALL CAR HAS LOST APPROX 10,000 DOLLAR IN VALUE OR THIS ISSUE. JUST SPOKE WITH LOCAL DEALER NO UPDATE COULD BE MONTHS OR YEARS WAS THERE UPDATE.

Typical onset: 50K miles Est. repair: $500

“TL* THE CONTACT OWNS A 2012 MERCEDES BENZ E550 (N/A). THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE AIR BAG OFF WARNING INDICATOR ILLUMINATED WITH THE FRONT PASSENGER SEAT OCCUPIED. THE OCCUPANT'S WEIGHT WAS APPROXIMATELY ONE HUNDRED POUNDS. THE MALFUNCTION RECURRED INTERMITTENTLY. TH”

— NHTSA complaint filing

When Problems Appear on the 2012 Mercedes-Benz E550

Based on 11 owner complaints that included an odometer reading. Median mileage at time of complaint: 69K miles. Most complaints cluster in the 0-30K miles range.

Overall complaint distribution by mileage

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

Mileage figures are self-reported by owners in NHTSA complaint filings. Peak bucket = the mileage range with the most complaints for that component; it reflects when owners noticed and reported problems, not necessarily when the fault first occurred.

Fuel Cost Calculator for 2012 Mercedes-Benz E550

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$2,401

Per month

$200

Per mile

20.0¢

MPG

City driving (worst-case MPG)

$3,001/yr

Highway driving (best-case MPG)

$1,847/yr

Based on EPA fuel-economy ratings and EIA weekly retail prices (2026-07-20). Real-world cost varies with driving style, trim/engine, terrain, and traffic.

5-Year Gas Price History

EIA weekly retail data · 2021 → today

Show:

Current

$4.00

5-year low

$2.78

5-year high

$5.01

Since 2021

+27%

Source: US Energy Information Administration weekly retail gasoline prices.

Estimated Insurance Cost for 2012 Mercedes-Benz E550

Estimate only, not a quote. Modeled from NAIC + HLDI averages for a hypothetical 35-year-old driver with clean record + full coverage. Your actual quote depends heavily on your age, driving history, credit, ZIP code, and insurer.

Your state (affects local premium average)

Full coverage / year

$1,971

Full coverage / month

$164

Liability only / year

$710

vs US avg

+18%

How this estimate is calculated

US base full-coverage premium$1674

× state (US)1.00x

× vehicle class (sedan-luxury)1.28x

× theft risk1.00x

× safety rating1.00x

× vehicle age0.92x

= Full coverage estimate$1971

Coverage assumed: 100/300/100 liability + comprehensive/collision, $500 deductibles. Data sources: NAIC 2024 + HLDI loss studies.

Maintenance & Warranty

Recommended Mercedes-Benz E550 Service Intervals

Oil change

10K mi / 12 mo

Tire rotation

10K mi

Brake fluid

24 months

Transmission fluid

40K mi

Engine coolant

150K mi

Spark plugs

60K mi

Cabin air filter

20K mi

Engine air filter

40K mi

Differential (AWD/4WD)

40K mi

Service A / Service B alternating schedule. Requires MB-approved oil (229.5 spec typically).

"Severe service" conditions (heavy towing, extreme temps, city stop-and-go) typically halve these intervals. Always consult your vehicle's owner's manual for the authoritative schedule.

Mercedes-Benz New-Vehicle Warranty Coverage

Bumper-to-bumper (basic)

4 yr / 50K mi

Powertrain

4 yr / 50K mi

Hybrid/EV battery

10 yr / 155K mi

Corrosion (rust perforation)

4 yr / 50K mi

Roadside assistance

4 yr / unlimited mi

EQ EV battery warranty is 10 years/155,000 miles

These are the terms for a new Mercedes-Benz. If you're buying a used 2012 E550, remaining coverage is usually pro-rated from the vehicle's original in-service date. Not all coverage transfers between owners — check with a Mercedes-Benz dealer for VIN-specific remaining warranty.

Estimated Repair Costs

AIR BAGS(~50K mi)

$500

ELECTRICAL(~50K mi)

$500

STEERING(~50K mi)

$500

SEATS/RESTRAINTS(~50K mi)

$500

SUSPENSION(~50K mi)

$500

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

🔍 Pre-Purchase Inspection Checklist

Based on 22 owner complaints for this specific year, here's what to check or ask about:

☐
AIR BAGS: TL* THE CONTACT OWNS A 2012 MERCEDES BENZ E550 (N/A). THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE AIR BAG OFF WARNING INDICATOR ILLUMINATED WITH THE FRONT PASSENGER SEAT OCCUPIED. THE OCCUPANT'S WEIGHT WAS APPROXIMATELY ONE HUNDRED POUNDS. THE MALFUNCTION RECURRED INTERMITTENTLY. TH
Typically appears around 50K miles. Repair cost ~$500
☐
ELECTRICAL: TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ E550. WHILE ATTEMPTING TO PUT ON THE DRIVER'S SIDE SEAT BELT, THE SEAT BELT FRACTURED. THERE WERE ALSO ELECTRICAL FAILURES IN THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE SEAT BELT WOULD HAVE TO BE REPROGRAMMED. THE VEHICL
Typically appears around 50K miles. Repair cost ~$500
☐
STEERING: I WAS BACKING THE CAR WHEN THE STEERING BECAME STIFF AND A MESSAGE STATING 'POWER STEERING MALFUNCTION SEE OWNERS MANUAL' APPEARED. I TURNED THE CAR OFF AND RESTARTED AN HOUR LATER AND THE SAME MESSAGE APPEARED. STEERING WAS VERY DIFFICULT. THANKFULLY, IT DIDN'T HAPPEN AT A HIGH SPEED OR TURNING.
Typically appears around 50K miles. Repair cost ~$500
☐
SEATS/RESTRAINTS: TL* THE CONTACT OWNS A 2012 MERCEDES-BENZ E550. WHILE ATTEMPTING TO PUT ON THE DRIVER'S SIDE SEAT BELT, THE SEAT BELT FRACTURED. THERE WERE ALSO ELECTRICAL FAILURES IN THE VEHICLE. THE VEHICLE WAS TOWED TO THE DEALER WHERE IT WAS DIAGNOSED THAT THE SEAT BELT WOULD HAVE TO BE REPROGRAMMED. THE VEHICL
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)