Overheating on the 2008 Honda Civic
1 fire 1 of the 48 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 overheating gets reported
Owners of the 2008 Honda Civic report overheating at a median of 107,500 miles. A quarter of the reports come in before 85,000 miles and a quarter after 140,000 miles, from 35 reports that carried an odometer reading.
A part like this is normally expected to survive 102,000 miles. It is the 6th most-reported problem on this model year.
The mileage distribution
The reported range runs from 57,500 miles at the tenth percentile to 167,500 miles at the ninetieth, a spread of 109,450 miles across the middle 80% of reports.
A spread this wide points at use rather than design. Towing, climate, service history and city mileage all move a failure like this, so the median is a weak guide to any individual car.
6% of the dated reports were filed under 36,000 miles.
The whole distribution
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| 58,550 miles | 84,726 miles | 107,000 miles | 140,000 miles | 168,000 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 a fire 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 $400–$3,500 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 11 model years of this car. It shows up earliest on the 2013, at a median of 15,000 miles, and latest on the 2009 at 140,000 miles.
By volume the 2006 carries the most reports, with 65; the 2008 has 48. 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.
My 2007 honda civic ran over a piece of tire from a truck. It passed under the car and bent the rear most bracket holding the handbrake cable. It applied the rear brakes causing the vehicle to become difficult to control. The rear brakes overheated and the rear brakes required a major service to restore it to roadworthiness. We contacted honda, they opened a case number but refused to accept there was a design problem and left the resolution to me. I believe this could lead to a nasty accident if the rear wheel brakes locked up and I think the design change required would be simple. If the rear bracket was moved up 1 to 2" I think the problem would be solved. I suggested this the honda but my suggestion was ignored citing they didn't see this problem show up elsewhere. *tr
Cracked engine block on 2008 honda civic- most owners experience overheat + failure of engine. Honda tsb 08-044 clearly explains defect-likely to crack around coolant passages on 06,07,+08 civic most owners will be in a dangerous position - possible fire+. *tr
We only received one warning the engine overheated for no reason then we found out we had a defective engine from honda in a 2008 civic. The engine was replaced but they know they have a defective engine block in the honda civic 2008, 2007, and 2006 so how do we know if we did or did not receive another block with the same problem. This could overheat and cause a fire. We were not given a new warranty on the replaced engine. We were not reimbursed on expenses to rent a car, and fly back to pick up car and towing. *tr
Also reported on the 2008 Honda Civic
Other visibility problem
Other engine problem
Airbag inflator rupture
Other suspension problem
Other body or interior problem
Paint peeling or clear coat failure
How far this goes
Complaints are voluntary, so 48 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 overheating happen on the 2008 Honda Civic?
Across 35 owner reports that included an odometer reading, half were filed by 107,500 miles. A quarter were filed before 85,000 miles and a quarter after 140,000 miles. These are the mileages owners reported when they complained, not a prediction for any individual car.
How common is overheating on the 2008 Honda Civic?
48 reports have been filed with NHTSA, about 0.8 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