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Buyer's Guide · Mercedes-Benz S-Class · Full-size luxury sedan

Used Mercedes-Benz S-Class Buyer's Guide

3 min read

Also worth reading: Mercedes-Benz Reliability Guide, Best Used Mercedes-Benz Models and Mercedes-Benz E-Class Buying Guide.

The S-Class is Mercedes' flagship and one of the most technologically advanced sedans ever built. Depreciation is steep, which means used-market values can be extraordinary — but ownership complexity is also extraordinary.

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Quick Verdict
Overall verdict
3.7/5 · Good
Reliability
3.6/5 · Good
Best years
2007–2013 W221 (S550 with M273 V8), 2014–2020 W222 (S550/S560 V8, post-early builds)
Years to research
2007–2011 W221 (ABC suspension), V12 examples (S600, S65)
Maintenance cost
2.8/5 · Below average
Parts availability
4.0/5 · Very good
Ownership cost
2.7/5 · Below average

Bottom line: Yes, if you can find one with complete records and a trusted independent shop.

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Overall · All generations
★★★★★3.7/5
A used S-Class is one of the biggest values in the luxury market and one of the highest-risk. Buy with records or don't buy — and factor Airmatic, ABC, and complex electronics into the ownership budget.
Reliability· All generations
★★★★★3.6/5
Maintenance
★★★★★2.8/5
Parts availability
★★★★★4.0/5
Ownership cost
★★★★★2.7/5
Top Picks

Best Years to Buy

Generations with the strongest long-term reputation.

2007–2013 W221 (S550 with M273 V8)

V8 is well-understood; parts and independent-mechanic support are strong.

2014–2020 W222 (S550/S560 V8, post-early builds)

Later production refined; V8 is preferred for long-term ownership.

Side by side

Mercedes-Benz S-Class ratings at a glance

CategoryRatingWhat it means
Overall3.7/5Good
Reliability3.6/5Good
Maintenance2.8/5Below average
Parts availability4.0/5Very good
Ownership cost2.7/5Below average
Do your homework

Years to Research Carefully

Not deal-breakers — but they reward a careful buyer.

2007–2011 W221 (ABC suspension)

Active Body Control is refined but expensive when it fails.

V12 examples (S600, S65)

Exceptional cars but very expensive to service; verify complete history.

Known issues

Common Problems

Bring this list to your pre-purchase inspection.

  • ✓
    Airmatic and ABC suspension components
  • ✓
    Rear subframe rust on Northeast cars
  • ✓
    Coolant leaks on V8 examples
  • ✓
    COMAND and screen electronics on early W221
  • ✓
    Timing chain guides on some V8 variants at high mileage
Ownership

Maintenance Expectations

S-Class ownership requires an independent Mercedes specialist you trust. Dealer prices are punishing.

Air-suspension components and complex electronics are the largest ownership-cost variables.

Before you buy

Inspection Checklist

What to verify on any candidate car.

Airmatic/ABC
All corners level; no leaks; compressor operation quiet.
Engine
V8: coolant condition, no oil leaks. V12: complete service history mandatory.
Transmission
7G-Tronic smooth; verify fluid history.
Rust
Rear subframe, jack points, wheel arches.
Electronics
COMAND, seat controls, convenience features all operate.
Living with it

Ownership Experience

  • • Genuinely quiet and comfortable at any speed. One of the best long-distance vehicles ever made.
  • • Real-world 18–22 mpg highway on V8.
  • • The interior and ride are exceptional; the ownership cost demands informed shopping.
The Verdict

Should You Buy a Used Mercedes-Benz S-Class?

Yes, if you can find one with complete records and a trusted independent shop. The S-Class rewards informed buyers and punishes uninformed ones.

People Also Ask

Is the Mercedes-Benz S-Class a good used car?

Verdict rates it 3.7/5 overall, with reliability at 3.6/5 and running costs at 2.7/5. Shop 2007–2013 W221 (S550 with M273 V8) first and treat 2007–2011 W221 (ABC suspension) as a records-only purchase.

Frequently Asked Questions

How reliable is the Mercedes-Benz S-Class?
Verdict scores it 3.6/5 for reliability and 3.7/5 overall. Buy from 2007–2013 W221 (S550 with M273 V8) and the known trouble spots largely drop away.
Which S-Class years should I avoid?
2007–2011 W221 (ABC suspension) deserve the most scrutiny — see the Years to Research section for the specific issues to check.
What are the best years for the Mercedes-Benz S-Class?
2007–2013 W221 (S550 with M273 V8). Those years combine the settled version of the powertrain with the fewest recurring complaints in our research.
How long does a Mercedes-Benz S-Class last?
A well-maintained S-Class from the recommended years should comfortably reach 200,000 miles, with the strongest powertrains clearing 300,000+.
Is the S-Class expensive to maintain?
Maintenance scores 2.8/5 and parts availability 4.0/5. Routine servicing is predictable; the cost risk is the model-specific work listed above.
What should I inspect before buying a used S-Class?
Focus on: Airmatic/ABC, Engine, Transmission, Rust. Details for each are in the Inspection Checklist section.
What are the most common S-Class problems?
Airmatic and ABC suspension components; Rear subframe rust on Northeast cars; Coolant leaks on V8 examples; COMAND and screen electronics on early W221
Is 150,000 miles too much for a S-Class?
Not on its own. A 150k-mile S-Class with documented service history is often a better buy than an 80k-mile example with no records — the S-Class's core mechanicals routinely run well past 200k.
Should I buy a used Mercedes-Benz S-Class?
Yes, if you buy the right year and the right paperwork. Shop 2007–2013 W221 (S550 with M273 V8) first, treat 2007–2011 W221 (ABC suspension) as a records-only purchase, and make the sale conditional on an independent inspection.

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