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Fuel systemPart report

1999 Mercedes-Benz C230K Fuel system Problems

Complaints
2about this part
Share
29%of 7 total for the year
Median mileage
100,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the fuel system of the 1999 Mercedes-Benz C230K, 29% of the 7 complaints for this model year. Where a mileage was given, the median is 100,000 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.

“Drivers side gas tank is leaking with strong gas fumes coming from under car sitting still. Leak is at the bottom sending unit on the left plastic tank under the passenger seat behind the driver. I isolated the leak to where the wires plug to the tank gauge sending unit. This is obviously a very dangerous condition that should not occur ever in normal operating of the car. This car has not been abused or wrecked that I know about so, it is a manufacturer defect. …”

NHTSA complaint #10525034, filed 2013-07, 120,000 miles

“Mar '07: interior dash light warning check engine came on. I immediately brought it to a mercedes-authorized mechanic; computer diagnostic said fuel trim error . Mar to oct '07 following parts were replaced: all fuel injectors, spark plugs, engine wiring, all engine gaskets & 2 maf (mass air flow) oxygen sensors; additionally, the compressor unit was taken apart 7 times, and upon examination, a very small amount of oil would be discovered - 1 tsp to 1 tbsp ea time. Each time, it was impeccably cleaned. Total cost to owner over 7 months: $3,500. …”

NHTSA complaint #10205577, filed 2007-10, 80,000 miles

Fuel system: other model years

YearComplaintsShare of year
1999229%

Other parts of the 1999 Mercedes-Benz C230K

Electrical system
3 complaintsAir bags
1 complaintsBrakes
1 complaintsEngine cooling
1 complaintsExterior lighting
1 complaintsSuspension
1 complaints

← All problems reported for the 1999 Mercedes-Benz C230K

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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