Mercedes C180 Fuel Consumption: City-Cost Worksheet

Keep the build, engine, transmission and original market with any fuel-consumption reference. The Singapore C180 overview describes a particular mild-hybrid specification. Its published figure should not be copied onto earlier C180 cars or treated as the customer’s expected city result.

Use the engine and gearbox record before comparing offers. A different engine pairing, equipment package or measurement standard can make a seemingly simple comparison misleading. Ask what the quoted number describes and retain the original source wording alongside it.

List typical trip length, number of starts, waiting time and passenger load. A series of short journeys can differ substantially from one longer commute even if the weekly distance is similar. Include ordinary heating or cooling use and the route’s major gradients.

Separate the regular week from occasional long trips. The buyer may want a city budget and a broader annual estimate, but those should use distinct assumptions. Avoid allowing one favourable motorway run to stand in for a customer who spends most of their time in urban traffic.

Request fuel added and distance over the same period, or a trip-display record with its reset point explained. For a refill calculation, reasonable consistency and sufficient distance matter. One partial fill or a very short measurement can dominate the result and should be treated cautiously.

Record units clearly. Litres per 100 km and kilometres per litre express consumption differently, while miles-per-gallon figures need their gallon convention identified. Convert only when the underlying units are known, and do not compare numbers with missing labels simply because one looks smaller.

Suppose an illustrative record shows 35 litres used over 500 km. That equals 7 L/100 km. At a hypothetical fuel price of 1.50 currency units per litre, the fuel cost is 10.50 per 100 km. These are demonstration inputs, not a C180 test result or a current fuel quote.

For 1,200 km per month, the same assumptions produce 126 currency units. Replace distance, appropriate fuel price and consumption with supported inputs before advising a customer. Show a range if the route is uncertain instead of implying that a precise monthly amount has been established.

If an observation seems inconsistent with the described use, ask about traffic, load, weather, tyre setup and the measurement period first. Where warning messages, abnormal running or maintenance concerns are present, arrange a qualified assessment of the actual vehicle rather than diagnosing it from fuel use alone.

The maintenance chronology helps identify relevant gaps or completed work. A reset average is not a repair record. If work is undertaken, keep the diagnosis and a suitable follow-up observation so the buyer can see what changed and under which conditions.

The complete purchase quote should identify preparation and delivery costs independently of prospective running expense. If one car needs immediate work, a theoretical fuel saving should not hide that requirement. Use the same distance and fuel-price assumptions when comparing two identified candidates.

For an urban buyer, a small estimated economy difference may matter less than suitable seats, functioning climate control and a clear condition record. State that tradeoff plainly. The purpose of the worksheet is to inform the choice, not to manufacture a universal winner between different C180 years.

If the customer’s business has busy and quiet seasons, calculate those periods separately. Multiplying one unusually active month by twelve may distort the annual estimate. Keep distance, consumption assumption and fuel price visible for each period, and explain which input changes with the route. This gives the dealer a calculation the customer can adapt without suggesting that one C180 driving record predicts every future journey or seasonal operating condition.

Provide the intended destination, annual distance, common trip length and accepted versions. Ask for available consumption evidence with its limitations. A supplier without a useful observation should say so rather than promise a real-world figure for an untested vehicle.

For repeat purchases, keep each candidate’s evidence separate even where the specification matches. The next owner can refine the budget with actual use. An honest initial estimate remains useful because its assumptions were visible, rather than being presented as a guaranteed fuel bill.