Worn timing sprocket and balance shaft was defective when I purchase the vehicle in 2011. Mercedes benz knew about this defective part and did not inform me. The vehicle had 46000 miles on it at the time. If I was inform about this problem I wouldn't have bought it. I believe this is a violation of the consumer protection act. *tr
2007 Mercedes-Benz S-Class engine problems
moderate 9 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Complaints
9
Recalls
0
Avg fix
$3,100
When does it fail?
Of the 9 engine complaints filed for the 2007 Mercedes-Benz S-Class, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 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 5 model years of Mercedes-Benz S-Class we track for engine problems, this one carries the most owner complaints on file — 9.
No new NHTSA engine complaint has been filed on this vehicle in over 11 years — the issue may be aging out of the active population.
What owners are reporting 4 most recent
Tl*the contact owns a 2007 Mercedes benz s350. While driving approximately 5 MPH onto an exit ramp, the engine decreased in power and hesitated. The failure occurred without warning. The vehicle was taken to an authorized dealer, but the failure could not be duplicated. The vehicle was taken to an authorized dealer on three separate occasions for the same failures, but there were no…
Tl*the contact owns a 2007 Mercedes s550. While driving 40 MPH he heard a rattling noise from the front-end of the vehicle. The vehicle was taken to the dealer, and the motor mounts were replaced because they fractured. The manufacturer was notified, and a representative stated that the there was no recall related to the failure. The VIN was not available. The failure and current mileages were…
Tl* the contact owns a 2007 Mercedes-benz s550. While driving 60 MPH, the odor of fumes emitted through the vehicle and made the contact nauseous. Medical attention was not received. The contact called olympia pre owned auto (1806 wake forest rd, raleigh, nc 27608, (919) 301-8551) and was informed that they would call her back. The vehicle was not taken to a Mercedes-benz dealer or independent…
Had engine 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 engine problem on the 2007 Mercedes-Benz S-Class?
It's a documented issue but not catastrophic. 9 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Based on the 9 complaints filed, engine issues most often appear around 76,333 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine 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 engine?
No active recalls currently cover engine 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.