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Mercedes-Benz C-Class Estate (2000-2007) running costs and reliability

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Running costs rating: 2.5 out of 52.5

Written by Parkers Published: 6 June 2019

Miles per pound (mpp)

Reliable fuel consumption data for comparison purposes is not available for this model.

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Fuel economy

A more stringent standard for fuel economy (WLTP) was introduced from September 2017, and this model was not required to undergo that test. Its fuel economy measured under the previous test system was 23 - 44 mpg. However these figures are less likely to be achievable in real world driving and so should never be compared to another car's mpg which was measured under the newer, more realistic WLTP system.

View mpg & specs for any version

Expensive to buy new but depreciates slowly. Servicing at official dealers is very expensive. Diesel engines are frugal as well as supercharged 1.8-litre petrol engines.

C-Class performs fairly badly on the eco front. With an average of 210 g/km CO2 across the line-up, its emissions are a touch high for a medium-sized estate. However, it’s worth noting that the line up has a high number of diesel models, bringing the average down and giving buyers more choices of low-emission versions. Diesels typically produce less CO2 than petrol engines with similar power outputs.

The range is not very frugal, averaging 34 mpg.

The C-Class arrived at a time when some Mercedes-Benz models had suffered below average reliability. However, the majority of C-Class models have not suffered any major problems.