Cars for sale Ireland»BMW»4 Series»2021
Used 2021 BMW 4 Series for sale
420D M Sport Coupe
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€36,950
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Could suit you if…
- Your usual group fits within 4 seats, including the driver. Check passenger space and any child-seat fit in person.
- You regularly make longer journeys: diesel may fit that pattern better than a routine of mostly short trips. Compare actual running costs.
- You would prefer less gear changing in traffic: the recorded automatic transmission may suit. Try how this exact gearbox behaves on a test drive.
Think twice if…
- You need to carry more than 4 people together: the advert records 4 seats, including the driver.
- Most journeys are short school runs or local trips: check whether this diesel has a particulate filter and what longer runs its handbook requires.
- You need servicing to fit a tight budget: Spanner estimates higher maintenance costs for this type. Get quotes for the exact engine and gearbox before committing.
- You regularly help children or passengers into the rear: fewer doors can make access awkward. Try your child seats and usual passenger routine before deciding.
This is general guidance about this type of car and your needs — not an inspection or approval of this individual car.
BMW’s 4 Series diesels from 2021 are typically Euro6 units and many cars use SCR/AdBlue as well as a DPF — that makes them efficient on long runs but sensitive to predominantly short-stop town use. The automatic is usually BMW’s ZF 8-speed; dealers often quote ‘lifetime’ fluid but a recorded gearbox service (fluid/filter) improves longevity and shift quality. Also note M Sport suspension/options are common on these cars and change ride harshness; if you’re unsure whether this is the 2-door coupe or the 4-door Gran Coupe, check the number of rear doors as practicality differs.
- DPF behaviour and regeneration history — look for frequent regens, excessive soot smell or warning lights (short urban runs can block DPF)
- AdBlue system: filler cap, dosing pump warning lights and service history for the SCR system
- Automatic gearbox service history and on-road shifts — test for smooth, prompt changes and no hesitation or harsh downchanges
- Signs of oil/turbo/intercooler hose leaks or blue/black smoke at start and under load
- Suspension and steering feel — check for knocks from front suspension bushes/steering rack and any harshness from M Sport dampers
Spanner’s our AI mechanic — always have a proper look at the car in person before buying.
This stunning BMW 420D Coupe M-Sport comes fully serviced and warrantied. Trade-ins are accepted and finance can be arranged. Click-and-deliver and click-and-collect services are available on request. We are a SIMI-approved dealership specialising in premium cars. We are located just 10 minutes from Blanchardstown Shopping Centre, just off the M3, on Dunshaughlin Main Street on the Navan side of the village. Our Eircode is A85 DK15.