High Mileage: With good maintenance and careful driving, many engines can exceed 200,000 miles, and some have even reached 300,000 miles or more. There are not likely to be any definitive timescales to expect your Mercedes-Benz to start developing issues, but as with many cars, problems generally begin after around 7-10 years and around 100,000 miles. This is when items such as suspension arms, hydraulic engine mounts, and timing belts can need replacing.A well-maintained Mercedes-Benz engine can typically last between 250,000 to 300,000 miles. Some engines, with meticulous maintenance and optimal driving conditions, have been known to exceed this range significantly.Quick answer – this really depends on the price and the service history of a car. Some cars may be at the end of their useful life due to poor servicing and questionable build quality at 160,000kms – others might still be going strong at 300,000kms.Engines between 1. With great fuel economy, having a 1. L engine means you won’t need to visit a petrol station as often. Litre Engines This kind of engine could be good if, for example, you use your car for work in and around a town or city, but often find yourself making longer trips to see clients or customers further afield.They offer a balance between power and fuel efficiency, making them a popular choice for drivers who desire a good combination of performance and economy.If you’d prefer a little more power underneath you, or you do a mixture of short journeys and trips along the motorway, you might find that an engine between 1.