Other engine problem on the 2008 Mercedes Benz C300
1 injury 1 of the 16 reports for this failure mention a crash, a fire, an injury or a death. Those are the owner's words on the complaint form, not a verified finding, and one report can mention more than one.
When other engine problem gets reported
Owners of the 2008 Mercedes Benz C300 report other engine problem at a median of 80,000 miles. A quarter of the reports come in before 65,000 miles and a quarter after 85,000 miles, from 11 reports that carried an odometer reading.
A part like this is normally expected to survive 95,000 miles. It is the 11th most-reported problem on this model year.
The mileage distribution
The reported range runs from 60,000 miles at the tenth percentile to 95,000 miles at the ninetieth, a spread of 33,000 miles across the middle 80% of reports.
Reports bunched into a band this tight usually mean the component has a life of its own: it goes at roughly the same mileage regardless of who owns it.
9% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 60,000 miles | 66,000 miles | 80,000 miles | 87,378 miles | 93,000 miles |
Read the 10th percentile as “one report in ten arrived this early”. Exact figures are shown in this table because it is the table of record; everywhere else on the site they are rounded to the precision the sample can carry.
What a percentile can and cannot tell you here
These five numbers describe the readings owners gave, in order. The median is the middle one: half the reports arrived below it. The 10th and 90th are the edges of the bulk of the distribution, and the distance between them is the part worth reading. A tight spread — say 70,000 to 95,000 miles — points at something that wears out on a schedule, and the schedule is knowable. A wide one, 20,000 to 190,000, points at a fault that hits some cars and never troubles others, which means the mileage on the listing in front of you tells you very little about your odds.
What these figures are not is a survival curve. Every reading here comes from a car whose owner filed a complaint, so the sample contains only failures: it cannot say what share of the fleet made it past 150,000 miles untouched, because those owners had nothing to report. Nor is the mileage the moment of failure — it is the odometer reading as recalled at the time of filing, which may be weeks later and is sometimes rounded to the nearest ten thousand by the person typing it.
Percentiles are shown at all only once 8 readings exist for the vehicle and mode. Below that the middle of a handful of numbers is noise wearing a decimal point, so the figures are withheld rather than dressed up.
What happens, and what it costs
Of these reports, 1 an injury is mentioned. Owners write their own complaints and the agency does not verify them, so read this as what the reports say happened rather than as a confirmed count.
Putting it right typically runs $300–$4,000 at an independent US shop. That range is an editorial estimate held in this site's failure-mode catalogue, not a figure from NHTSA, and it is a repair cost rather than a diagnosis cost.
The same failure on other years
The same failure is reported on 8 model years of this car. It shows up earliest on the 2011, at a median of 5,000 miles, and latest on the 2008 at 80,000 miles.
By volume the 2015 carries the most reports, with 112; the 2008 has 16. A mode that appears across most years of a model is usually a design choice rather than a bad batch.
If one year stands out to the left, that is the year to avoid; if the whole line sits at a similar mileage, this is wear rather than a defect in one production run.
Tick median reported mileage Solid middle half of reports Faint 10th to 90th percentile Colour how bad the failure is when it happens
What owners wrote
Verbatim from NHTSA complaint narratives, trimmed for length. The mileage is the one the owner gave.
Shame on you mercedes benz! It appears to be a known issue that the steering lock goes out leaving your loyal customers stranded with no ability to start the car. Ok! Now, I am told the cost to repair is $1450 for the part and the labor. Looks like my next car will be a bmw! (steering lock went out at 80k- leaving the car unable to start). *tr
Am concerned with this 2008 mercedes I own with similar issues as gmc cars with the ignition/key/engine just stopping...car lost all power and wheels locked. The car was driving well one moment then stopped. Was not injured but was left stranded at night getting off work with no car....had to have it towed out of parking lot which was quite difficulty with wheels locked....and taken to mercedes dealership. It was repaired for 800.00$...and I asked if this would happen again and was told "probably"....have noticed online this has been a know issue in the 2008 model.....my question is why is mercedes not held accountable for faulty part like gmc is.....and I have hear this has happen while the vehicle has been moving too....that scares my greatly.....the dealership of nashville would not even address any concern with me about this.... *js
It appears that the eis module has failed, I have done some research and have found several other consumers having the same issues with this particular year and model vehicle. This concerns me. Why hasn't any recalls been done to fix this issue. It seem like this is a safety issue. What if I were driving my car and the eis had malfunctioned. I would have lost power to my vehicle as well as all steering abilities. Could you please investigate this issue? *tr
Also reported on the 2008 Mercedes Benz C300
Airbag inflator rupture
No-start or intermittent start failure
Other electrical problem
Tail light, brake light or signal failure
Other steering problem
Other lighting problem
How far this goes
Complaints are voluntary, so 16 is a floor and not a count of affected cars. Mileages are typed in by owners and cluster on round numbers. And the mode itself is assigned by software reading the complaint text, which is reliable in bulk and fallible one report at a time.
Questions this page answers
At what mileage does other engine problem happen on the 2008 Mercedes Benz C300?
Across 11 owner reports that included an odometer reading, half were filed by 80,000 miles. A quarter were filed before 65,000 miles and a quarter after 85,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is other engine problem on the 2008 Mercedes Benz C300?
16 reports have been filed with NHTSA, about 1.5 per 1,000 vehicles. Complaints are voluntary, so this is a floor rather than a count of affected cars.
What this is and is not. These are the mileages at which owners chose to complain to a federal agency, which is not the same as the mileage at which the part fails on every car. It skews toward failures that happened outside warranty, cost real money, or frightened someone. It is still the only public dataset that carries failure mileage at all, and the shape of a few hundred readings is informative even when a single one is not. Methodology · JSON · this failure on other cars
Source Owner complaints and recall records published by the US National Highway Traffic Safety Administration, model years 1996–2027 Figures rebuilt Published by AtWhatMileage How every figure is computed