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2006 Mercedes-Benz S-Class Recalls, Problems & Maintenance

The 2006 Mercedes-Benz S-Class has no open NHTSA recalls. Owners report 6 recurring issue clusters, led by “Instrument panel and electrical system failure.” Mercedes-Benz alternates two service events: Service A (oil, filter, inspection) at roughly 10,000 miles or 1 year, then Service B (Service A plus brake fluid, cabin filter, and deeper checks) at roughly 20,000 miles or 2 years — the ASSYST Plus counter in the cluster tells you which is due. Oil must carry the MB-Approval number your engine specifies (commonly 229.5, or 229.71 for newer 0W-20 engines); 'meets or exceeds' marketing language is not an approval. Electric EQB and EQS models keep the A/B rhythm for inspections, brake fluid, and cabin filters — just without oil.

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No open recalls on file. NHTSA lists no unrepaired safety recalls for this year, make and model. A recall can be issued at any time, and a specific car can still have one open — check yours by VIN at nhtsa.gov/recalls.

Known issues & problems for this vehicle

What drivers and federal regulators have officially reported about the 2006 Mercedes-Benz S-Class.

Reported to NHTSA

Instrument panel and electrical system failure

ELECTRICAL SYSTEM

4 NHTSA complaints · 2012-10 → 2018-08

“2006 MERCEDES BENZ S 430. CONSUMER STATES THAT INSTRUMENT PANEL IN VEHICLE WENT OUT. *LD THE CONSUMER STATED THE MANUFACTURER REFUSED TO HONOR THE RECALL DUE TO THE VEHICLE'S AGE.*JS”
— Owner report, NHTSA ODI #11122571
“TL* THE CONTACT OWNS A 2006 MERCEDES-BENZ S430. WHILE DRIVING APPROXIMATELY 40 MPH, THE INSTRUMENT PANEL FAILED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DETERMINED THAT THE INSTRUMENT PANEL CLUSTER FAILED, BUT WAS NOT REPAIRED”
— Owner report, NHTSA ODI #10891477
“WE HAVE BEEN RECEIVING MESSAGES FOR THINGS HAPPENING IN CAR ( EX LIGHT OUT TRUNK WON'T OPEN ETC.) WE HAVE BEEN TOLD THAT IT IS A WIRING HARNESS PROBLEM. THEY ARE WELL AWARE OF THE PROBLEM IN THE CARS BUT HAVE NOT TURNED IT IN AS A RECALL. *TR”
— Owner report, NHTSA ODI #10482773

Read all complaints on NHTSA →

Transmission shift and gear engagement failure

POWER TRAIN

4 NHTSA complaints · 2005-09 → 2016-01

“TL* THE CONTACT OWNS A 2006 MERCEDES-BENZ S500. WHILE DRIVING 20 MPH WITH THE BRAKE PEDAL DEPRESSED, THE VEHICLE JERKED BEFORE COMING TO A HALT. THE FAILURE RECURRED ON NUMEROUS OCCASIONS”
— Owner report, NHTSA ODI #10821033
“MY TRANSMISSION WOULD NOT SHIFT OUT OF SECOND GEAR. I TURNED IT OFF AND BACK ON AND IT DID NOT CLEAR. I GOT A "PRE-SAFE UNAVAILABLE" MESSAGE. I DID SOME RESEARCH AND LEARNED THIS IS A "TRANSMISSION CONTROL MODULE" FAILURE”
— Owner report, NHTSA ODI #10557207
“DT: THE CALLER SAID VEHICLE SEEMED TO SHIFT INTO A LOWER GEAR WHEN DRIVING BETWEEN 30 AND 40 MPH. WHEN THIS HAPPENED VEHICLE BUCKED FORWARD. THE CALLER PULLED OVER AS SOON AS SHE COULD BECAUSE SHE DID NOT KNOW WHAT WAS CAUSING THIS PROBLEM”
— Owner report, NHTSA ODI #10132468

Read all complaints on NHTSA →

Tire tread and belt separation

TIRES

3 NHTSA complaints · 2007-10 → 2015-07

“TL* THE CONTACT OWNS A 2006 MERCEDES BENZ S600 EQUIPPED WITH HANKOOK VENTUS AS TIRES, SIZE: P265/40R/18 (NA). WHILE DRIVING AT 25 MPH, THERE WAS A VIBRATION IN THE TIRES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS DIAGNOSED THAT THERE WAS TREAD SEPARATION”
— Owner report, NHTSA ODI #10734791
“TL* THE CONTACT OWNS A 2006 MERCEDES BENZ S500 WITH YOKOHAMA ADVANCE S4 TIRES, TIRE SIZE P265/40R18. THE CONTACT STATED THAT THE REAR PASSENGER TIRE EXPLODED WHILE DRIVING APPROXIMATELY 65 MPH”
— Owner report, NHTSA ODI #10393765
“TL*THE CONTACT OWNS A 2006 MERCEDES BENZ CLS 500. THE TIRES ON THE VEHICLE ARE MANUFACTURED BY CONTINENTAL, SIZE 245-40R1893Y DOT CUUYP3HK AND 375-35R1895Y DOT CUBLT3HK. THE VEHICLE WAS TAKEN TO THE DEALER FOR ROUTINE MAINTENANCE AND FOUND A BLISTER”
— Owner report, NHTSA ODI #10205379

Read all complaints on NHTSA →

Engine stall while driving with no diagnostic codes

ELECTRICAL SYSTEM, ENGINE

5 NHTSA complaints · 2014-11 → 2025-09

“Vehicle stall - engine cut off - on highway at speed (50-55miles/hr) posing driver and passenger safety. No OBD error code or ECU error Similar incidents reported by Mercedes owners S500 model across USA As posted on Mercedes forums”
— Owner report, NHTSA ODI #11684307
“Safety issues 1. Engine shuts off while driving. No error codes. Starts again with key and drives fine. 2. Steering locks while driving - maneuvering a turn. Stopped the car. Turn ignition off. Turn ignition on Everything works fine”
— Owner report, NHTSA ODI #11614082
“THIS PROBLEM HAPPEN THREE TIMES IN ABOUT 6 MINUTES IN ONE NIGHT. WHILE DRIVING AT 70 MILES PER HOUR. THE ENGINE CUT OFF, ALMOST BEFORE I KNEW WHAT HAPPEN THE ENGINE STARTED BACK RUNNING. IN LESS THAN A MINUTE IT HAPPEN AGAIN”
— Owner report, NHTSA ODI #10653075

Read all complaints on NHTSA →

Air suspension and front strut failure

SUSPENSION

5 NHTSA complaints · 2012-10 → 2017-07

“WHILE DRIVING THE CAR THE FRONT END DROPPED MAKING IT VERY DIFFICULT TO STEER. HAD TO SLOWLY MOVE TO THE RIGHT LANE WHILE TRAFFIC IS GOING 70. THIS COULD HAVE KILLED ME”
— Owner report, NHTSA ODI #10716369
“WENT OUT TO THE CAR TO GO TO THE PHARMACY TO GET MY ASTHMA MEDS AND THE CAR WAS DOWN ON THE GROUND,TOTALLY DEFLATED SHOCKS. START CAR AND RISES TO HEIGHT BUT SINKS WHEN CAR IS OFF, THIS IS A DANGER IF DRIVING ON THE HIGHWAY AT 55 MPH, I HAVE A WIFE AND A YOUNG SON”
— Owner report, NHTSA ODI #10562229
“TL* THE CONTACT OWNS A 2006 MERCEDES S350. THE CONTACT STATED THAT THE STEERING WHEEL AND THE FRONT END OF THE VEHICLE WOULD SHAKE WHEN DRIVING BETWEEN 25-40-MPH. THE CONTACT TOOK THE VEHICLE TO THE DEALER AND WAS TOLD THAT THE FRONT SUSPENSION NEEDED TO BE REPLACED”
— Owner report, NHTSA ODI #10509652

Read all complaints on NHTSA →

Sudden unintended acceleration

VEHICLE SPEED CONTROL

3 NHTSA complaints · 2009-12 → 2010-03

“TL*THE CONTACT OWNS A 2006 MERCEDES BENZ S430. THE CONTACT WAS DRIVING APPROXIMATELY 60 MPH. A SUDDEN INCREASE IN ACCELERATION OCCURRED WITHOUT WARNING. THE VEHICLE SLOWED DOWN AFTER SEVERAL ATTEMPTS. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER FOR INSPECTION”
— Owner report, NHTSA ODI #10319045
“TL* THE CONTACT OWNS A 2006 MERCEDES BENZ S430. THE CONTACT STATED THAT THE VEHICLE SUDDENLY ACCELERATED ON ITS OWN 1-2 TIMES A WEEK. IT WAS AN INTERMITTENT PROBLEM THAT RESULTED IN ANOTHER DRIVER DRIVING THE VEHICLE RUNNING INTO A BUILDING”
— Owner report, NHTSA ODI #10316997
“AS YOU SLOW DOWN TO BRAKE THE CAR ACCELERATES ON ITS OWN CAUSING IT TO HIT A BUILDING”
— Owner report, NHTSA ODI #10294849

Read all complaints on NHTSA →

Issues on other model years

Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 20, 2026. Investigation data refreshed Sep 20, 2026.

We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.

Raw data + downloads for this vehicle →

Essential maintenance

Critical for safety and preventing major damage

Service A — Oil & Filter + Inspection

Every 10,000 mi

Every 10,000 miles or 12 months: oil and filter with MB-Approved oil, fluid top-offs, tire check, and inspection. AMG models driven hard: many owners service at 5,000-7,500 miles.

Estimated cost — typical U.S. ranges

Dealer

~$120–$160

Shop

~$85–$115

DIY

~$25–$55

Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.

Service B — Major Inspection

Every 20,000 mi

Every 20,000 miles or 2 years, alternating with Service A: everything in A plus brake-fluid replacement, cabin filter, and a deeper multi-point inspection of brakes, suspension, and driveline.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free with any paid service. A flashlight and 10 minutes covers the basics yourself.

Tire Rotation

Every 10,000 mi

Rotate at every Service A where the tire sizes allow. Many AMG and 4MATIC+ models run staggered widths that can't rotate front-to-rear — check your spec before paying for a rotation.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Often free at the shop where you bought the tires — worth asking before paying.

Brake Inspection

Every 10,000 mi

Checked at every A/B service via electronic pad-wear sensors. Replace sensors with pads. Heavy EQS models wear pads slowly (regen braking) but rotors can corrode from disuse — an inspection catches that.

Estimated cost — typical U.S. ranges

Dealer

~$85

Shop

~$60

DIY

Free

Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.

Brake Fluid

Every 20,000 mi

Replaced every 2 years as part of Service B — Mercedes schedules it on time, not miles, because DOT 4 fluid absorbs moisture regardless of driving.

Estimated cost — typical U.S. ranges

Dealer

~$180–$200

Shop

~$125–$140

DIY

~$10–$25

DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.

Important maintenance

Keeps your vehicle running smoothly and efficiently

Automatic Transmission Fluid (7G / 9G-Tronic)

Every 70,000 mi

Mercedes specifies fluid and filter service around 70,000 miles on most 7G- and 9G-Tronic gearboxes — check your year's sheet. Use only the MB-spec fluid for your transmission code; independent specialists often service at 60,000 on hard-driven cars.

Estimated cost — typical U.S. ranges

Dealer

~$330–$500

Shop

~$235–$355

DIY

~$60–$180

Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.

Spark Plugs

Every 60,000 mi

Most modern MB gas engines: plugs around 60,000 miles — AMG engines often sooner. Check your engine's sheet; twin-turbo V8 plug jobs are labor-heavy, so pair with other scheduled work.

Estimated cost — typical U.S. ranges

Dealer

~$285–$390

Shop

~$200–$275

DIY

~$25–$100

Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.

Engine Air Filter

Every 40,000 mi

Replace around every 40,000 miles (twin-filter setups on V6/V8 engines double the parts bill). Inspected at every Service B.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

5-minute job on most cars; the airbox lid usually has clips, no tools needed.

Recommended maintenance

Extends the life of your vehicle and improves comfort

Combination / Dust Filter

Every 20,000 mi

Replaced with every Service B. Models with the ENERGIZING air package use a higher-grade filter — priced accordingly.

Estimated cost — typical U.S. ranges

Dealer

~$60–$95

Shop

~$45–$70

DIY

~$15–$40

Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.

Engine Coolant

On condition / lifetime

MB-spec coolant is long-life (typically ~10 years / 150,000 miles on the sheet). Refresh only with MB 325/326-spec coolant — the wrong chemistry attacks aluminum and head gaskets.

Estimated cost — typical U.S. ranges

Dealer

~$285–$330

Shop

~$200–$235

DIY

~$25–$60

Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.

12V & Auxiliary Battery

Every 25,000 mi

Test annually after year 3. Most modern Mercedes carry a second auxiliary battery; a weak one triggers cascading warning messages long before a no-start. EQ models also depend on the 12V system to boot.

Estimated cost — typical U.S. ranges

Dealer

~$225–$390

Shop

~$160–$280

DIY

~$130–$250

Most auto-parts stores test and install batteries free with purchase. Skip the dealer markup.

Fatal crash history & reported problems

Occupant deaths in fatal crashes (FARS)

12 crashes 1990–2024

How the 12 occupant deaths break down

10

driver deaths

2

passenger deaths

12

occupant deaths

Crash years covered: 1990–2024 This model year first appears in 2009 crashes. Older models have had more years on the road to appear in these crashes, so a higher count here does not by itself mean a vehicle is less safe.

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road. How to read this number

FARS 2024 data is an annual report file. NHTSA revises these records when the final file is published, so this count can change.

Why we show driver deaths too

Every vehicle has exactly one driver seat, so driver deaths line up fairly when you compare one model to another. Occupant deaths include passengers, so a three row SUV can show a higher number than a two seat car simply because it carries more people.

Both figures are plain counts, not rates. A rate would need to know how many of each vehicle are on the road, and that registration data is not public, so we do not publish rates or scores of any kind.

IIHS publishes driver death rates using this same driver only idea, paired with a registered vehicle years denominator we do not have. Their rates and these counts answer different questions, so do not read either number here as a safety rating.

Owner-reported problem signals

Separate from the federal fatality data above: complaints owners filed with NHTSA about this year and model. These are reports of problems, unverified, and are counted here only as signals.

3

complaints mentioning a crash

1

complaints mentioning a fire

Reviewed known issues for this vehicle

Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.

How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.

This maintenance schedule for the 2006 Mercedes-Benz S-Class reflects Mercedes-Benz's published service intervals and the ASSYST Plus (Service A / Service B) system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.

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