2008 Honda Civic SI Engine Problems
- Complaints
- 2about this part
- Share
- 29%of 7 total for the year
- Median mileage
- 115,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine of the 2008 Honda Civic SI, 29% of the 7 complaints for this model year. Where a mileage was given, the median is 115,000 miles.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“My 2008 Honda Civic Si has been leaking coolant for the past couple weeks. It is currently at around 115,000 miles. I noticed all of the extended warranty information about the 06-09 Honda civics and contacted both the dealership and corporate myself. They told me that because my model was not the base models but the si that it was a different engine and that they could not help me. However I am going to get the car back from my mechanic today who estimated the repairs would be $4500 to completely replace the engine. …”
NHTSA complaint #11073579, filed 2018-02, 115,000 miles“Coolant leak from the radiator. New head gaskets, new seals. Mystery coolant leak, coolant pushes from the radiator to the overflow, leaving radiator low coolant. New seals and new water pump, no drips or indication of leaking”
NHTSA complaint #11157000, filed 2018-12Engine: other model years
Other parts of the 2008 Honda Civic SI
3 complaintsAir bags
2 complaintsBody and structure
2 complaintsVisibility (wipers, defrost, mirrors)
1 complaintsWheels
1 complaints
← All problems reported for the 2008 Honda Civic SI
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology