The contact owns a 2007 Mercedes-Benz S550. The contact stated that while driving 30-40 MPH, the vehicle started to decelerate independently. The contact also stated that he smelled an abnormal gasoline odor inside the vehicle. The contact veered to the side of the roadway. The contact stated that the vehicle failed to restart. The contact was able to restart the vehicle after 10 minutes.…
2007 Mercedes-Benz S-Class suspension problems
moderate 11 complaints filed with NHTSA · avg repair $900 · see suspension across all vehicles →
Failure mileage
Complaints
11
Recalls
0
Avg fix
$900
When does it fail?
Of the 11 suspension complaints filed for the 2007 Mercedes-Benz S-Class, here's the actual mileage breakdown — failures cluster heaviest at 100,000-125,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Of the 4 model years of Mercedes-Benz S-Class we track for suspension problems, this one carries the most owner complaints on file — 11.
No new NHTSA suspension complaint has been filed on this vehicle in over 3 years — the issue may be aging out of the active population.
The failure pattern owners describe
Owners of the 2007 S550 report suspension failures spanning multiple systems. Struts, control arms, and ball joints dry out and fail as early as 78,000 miles, producing loud noises during turns and bumps, steering wheel vibration, and vehicle bouncing or pulling unpredictably. One critical incident involved a front strut fracture at 10 mph during a right turn, causing the body to collapse onto the tire. Worse, one owner experienced a sudden suspension lock-up pulling hard to the right at 70 mph on a freeway, nearly causing a multi-vehicle crash; that vehicle threw a body acceleration sensor code (5200 B24/3) implicating a faulty accelerometer or gyro sensor.
Air suspension systems fail independently, with the malfunction indicator illuminating after activating the suspension lift button or during normal operation. Multiple owners report air springs losing pressure, causing vehicles to lean and sit unstable.
Electrical failures amplify the problem: wiring harness oil contamination shorts out the engine control module, causing it to turn on and off intermittently while driving. Some vehicles fail to restart despite having fuel. One owner replaced an ECM at a dealer for $2,000.82 after prior suspension work, suggesting compound failures. Recall campaigns 2008080004 and NHTSA 08V608000 exist, but not all affected vehicles are eligible by VIN.
Failure modes owners describe
Strut and control arm wear / ball joint failure
Upper and lower control arms, ball joints, and front struts dry out and fail, causing structural collapse and control loss.
When: 78,000–131,989 miles; some as early as 78k, others at 131k and 205k
Symptoms owners cite: Loud noise when turning or crossing bumps; Abnormal steering wheel vibration; Bouncing and pulling to left and right while driving 30–65 mph; Difficult vehicle control; Front passenger side strut fracture (body collapsed onto tire) at 10 mph right turn; Vehicle leaning and unstable (rear passenger and front driver air suspension failure)
Codes mentioned: Code 5200 B24/3 (left front body acceleration sensor) – signal implausible
Repairs/costs cited: Front strut and radial knuckles replacement needed; ball joint replacement needed; air suspension system replacement (41k miles); part number 004 542 35 18 cited for sensor; suspension work cost $2,000 in one case
Recalls/TSBs owners mention: Recall campaign #2008080004 and NHTSA campaign #08V608000 (Suspension) mentioned by owners; some vehicles not covered by VIN eligibility
Air suspension system failure
Air suspension system loses pressure and malfunctions, causing vehicle instability and uneven ride height.
When: 41,000–205,000 miles
Symptoms owners cite: Malfunction warning indicator illuminates after suspension lift button pressed; Rear passenger side and front driver side air suspension loss; Vehicle leaning and unstable; Uneven suspension movement (up and down) on level pavement
Repairs/costs cited: Air suspension system replacement required
Sudden steering pull / suspension lock-up (possible accelerometer fault)
Front suspension suddenly locks or pulls hard to one side during highway driving, creating emergency loss of control.
When: Highway speeds (70 mph)
Symptoms owners cite: Front suspension pulled hard to the right unexpectedly at 70 mph on freeway; Uneven bouncing up and down after incident; Near-collision due to sudden lane drift
Codes mentioned: Code 5200 B24/3 (left front body acceleration sensor) – signal implausible
Repairs/costs cited: Part number 004 542 35 18 (likely accelerometer/sensor) replacement
Recalls/TSBs owners mention: Recall campaign #2008080004 referenced; owner's VIN not eligible per dealer check
Engine control module (ECM) failure (secondary to wiring harness oil contamination)
ECM fails intermittently or permanently; wiring harness oil contamination shorts out electrical components and damages control modules.
When: Intermittent early, permanent failure within 5 years of ownership
Symptoms owners cite: ECU/ECM intermittently turns off and on while driving; Vehicle fails to start on multiple occasions despite fuel in tank; Vehicle decelerates independently while driving 30–40 mph; Abnormal gasoline odor inside vehicle
Codes mentioned: P0019 (cam sensor bank B – timing sprocket tooth erosion mentioned)
Repairs/costs cited: ECM/ECU replacement cost $2,000.82 at Mercedes dealer; prior suspension work $2,000; independent mechanic diagnostic completed but details not provided
Synthesized from 11 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 3 most recent
Error code p0019 cam sensor bank b, manufacturers used defective part that timing sprocket teeth have eroded due to defective parts used which have and will cause vehicle to stahl while running. Both front struts wear on all models that cause driving conditions that can cause death while driver excelration or stopping cause
Struts and braking system have been unstable since I purchased the car. Wiring harness leaks oil and caused ecu to intermintinli turn off and on. Also the heat control timing caused car to over heat . Eventually I replaced the ecu 2 years ago at dealer . Mercedes has parts that are not safe to be in these operating conditions with such heat causeing wiring harness to short out and dealer said…
Had suspension trouble with your 2007 Mercedes-Benz S-Class?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the suspension problem on the 2007 Mercedes-Benz S-Class?
It's a documented issue but not catastrophic. 11 complaints have been filed. Repairs average $900 and most owners catch it before it causes a breakdown.
At what mileage does the suspension typically fail?
Across the 9 complaints that reported odometer mileage, most suspension failures cluster between 90,000 and 169,500 miles, with the median around 120,000. A quarter of owners report trouble before 90,000; a quarter make it past 169,500. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $900 for suspension repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to suspension?
No active recalls currently cover suspension issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2007/Mercedes-Benz/S-Class.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.