Is the 2010 Mercedes-Benz S550 reliable?

The 2010 Mercedes-Benz S550 has 22 complaints filed with NHTSA (1.1x the segment average). Our reliability verdict: average. Most common issue: SUSPENSION problems.

What are common problems with the 2010 Mercedes-Benz S550?

Top problems: SUSPENSION (6 complaints, avg repair $500); STEERING (5 complaints, avg repair $500); FUEL SYSTEM (5 complaints, avg repair $500). Issues typically appear around 50K miles.

Are there any recalls on the 2010 Mercedes-Benz S550?

No recalls have been issued for the 2010 Mercedes-Benz S550.

How much does it cost to fuel a 2010 Mercedes-Benz S550?

The 2010 Mercedes-Benz S550 gets 18 MPG combined. At current US average gas prices, driving 12,000 miles per year costs roughly $2667. See the interactive fuel cost calculator on this page for state-specific pricing.

How much does it cost to insure a 2010 Mercedes-Benz S550?

Estimated US average full-coverage insurance for the 2010 Mercedes-Benz S550 is approximately $1,821/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.

2010 Mercedes-Benz S550

Problems, Recalls & Reliability Report

Average

Quick Summary

The 2010 Mercedes-Benz S550 has 22 owner complaints filed with NHTSA — that's 1.1x the segment average of 20. The most common issue is suspension problems (27% of all complaints), specifically: when steering wheel is released even for a few seconds, vehicle pulls hard to the right and will put you in the ditch if you are not paying attention. the vehicle should track straight when the steering wheel is released..

1 crash report

Total Complaints

Recalls Issued

—/5

Safety Stars

1.1x

vs Segment Avg

Known Problems(top 5 of 8)

SUSPENSION

6 complaints

27%

• WHEN STEERING WHEEL IS RELEASED EVEN FOR A FEW SECONDS, VEHICLE PULLS HARD TO THE RIGHT AND WILL PUT YOU IN THE DITCH IF YOU ARE NOT PAYING ATTENTION. THE VEHICLE SHOULD TRACK STRAIGHT WHEN THE STEERING WHEEL IS RELEASED.
• PURCHASED A CERTIFIED PREOWNED MERCEDES BENZ S5550 4 MATIC. COMPLETE STEERING FAILURE OCCURRED AN HOUR AFTER PURCHASE (AFTER 20 MILES OF DRIVING). THE CAR'S STEERING WHEEL WAS SPINNING FREELY, AND NO CONTROL OVER THE FRONT WHEELS WAS POSSIBLE WHILE IN MOTION. VEHICLE HAD TO BE RECOVERED BY TH
• MY S550 WHEN DRIVING WOULD SUDDENLY GIVE A MALFUNCTION SIGNAL. I TOOK IT TO THE DEALER, SERVICE REPLACED THE 2 FRONT STRUTS. NOW THE CALL WILL GIVE A SIGNAL, RED LETTERS, "DO NOT MOVE CAR" AND THE ENTIRE STRUT SYSTEM WILL STOP WORKING AND THE CAR BODY IS VIRTUALLY SITTING ATOP THE TIRES. THIS AFTER

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

“WHEN STEERING WHEEL IS RELEASED EVEN FOR A FEW SECONDS, VEHICLE PULLS HARD TO THE RIGHT AND WILL PUT YOU IN THE DITCH IF YOU ARE NOT PAYING ATTENTION. THE VEHICLE SHOULD TRACK STRAIGHT WHEN THE STEERING WHEEL IS RELEASED.”

— NHTSA complaint filing

When Problems Appear on the 2010 Mercedes-Benz S550

Based on 17 owner complaints that included an odometer reading. Median mileage at time of complaint: 58K miles. Most complaints cluster in the 30-60K miles range.

Overall complaint distribution by mileage

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

STEERING

Reported earliermedian 52K mi · 5 reports

0-30K

30-60K

60-100K

100-150K

150-200K

200K+

SUSPENSION

Later than typicalmedian 82K mi · 5 reports

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 2010 Mercedes-Benz S550

Live EIA prices

Annual miles driven: 12,000

Your state (affects local gasoline price)

Per year

$2,667

Per month

$222

Per mile

22.2¢

MPG

City driving (worst-case MPG)

$3,201/yr

Highway driving (best-case MPG)

$2,087/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 2010 Mercedes-Benz S550

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

$1,821

Full coverage / month

$152

Liability only / year

$710

vs US avg

+9%

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 age0.85x

= Full coverage estimate$1821

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

Maintenance & Warranty

Recommended Mercedes-Benz S550 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 2010 S550, 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

SUSPENSION(~50K mi)

$500

STEERING(~50K mi)

$500

FUEL SYSTEM(~50K mi)

$500

OTHER(~50K mi)

$500

ELECTRONIC SYSTEMS(~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:

☐
SUSPENSION: WHEN STEERING WHEEL IS RELEASED EVEN FOR A FEW SECONDS, VEHICLE PULLS HARD TO THE RIGHT AND WILL PUT YOU IN THE DITCH IF YOU ARE NOT PAYING ATTENTION. THE VEHICLE SHOULD TRACK STRAIGHT WHEN THE STEERING WHEEL IS RELEASED.
Typically appears around 50K miles. Repair cost ~$500
☐
STEERING: WHEN STEERING WHEEL IS RELEASED EVEN FOR A FEW SECONDS, VEHICLE PULLS HARD TO THE RIGHT AND WILL PUT YOU IN THE DITCH IF YOU ARE NOT PAYING ATTENTION. THE VEHICLE SHOULD TRACK STRAIGHT WHEN THE STEERING WHEEL IS RELEASED.
Typically appears around 50K miles. Repair cost ~$500
☐
FUEL SYSTEM: TL* THE CONTACT OWNS A 2010 MERCEDES-BENZ S550. THE CONTACT STATED THAT UPON REFUELING THE VEHICLE, A STRONG FUEL ODOR WAS DETECTED IN THE INTERIOR OF THE VEHICLE. THE VEHICLE WAS TAKEN TO MERCEDES-BENZ OF GEORGETOWN (7401 S IH-35, GEORGETOWN, TX 78626, 512-930-6150) WHERE THE FAILURE WAS DIAGNOSED
Typically appears around 50K miles. Repair cost ~$500
☐
OTHER: WHEN STEERING WHEEL IS RELEASED EVEN FOR A FEW SECONDS, VEHICLE PULLS HARD TO THE RIGHT AND WILL PUT YOU IN THE DITCH IF YOU ARE NOT PAYING ATTENTION. THE VEHICLE SHOULD TRACK STRAIGHT WHEN THE STEERING WHEEL IS RELEASED.
Typically appears around 50K miles. Repair cost ~$500
☐
General: Get a pre-purchase inspection from an independent mechanic ($100-$200)