2004 Smart Roadster (452)
Browse our directory of 2004 Smart Roadster (452) vehicles. Access instant MOT history reports, tax status, and reliability insights for any registration listed below.
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Showing registrations 1–40 of 1,179 for the 2004 Smart Roadster (452). Select any plate for an instant vehicle history check.
Common Problems & Reliability
The 2004 Smart Roadster (452) has 3 known issues. 2 of these are classified as serious faults that could be expensive to repair.
Catastrophic Water Ingress
SeriousWater enters through wing mirrors, door seals, the bulkhead, and the rear quarter lights. This often ruins the SAM unit and the carpets.
Symptoms: Wet carpets, Mist on the inside of the glass...
Est. repair cost: £100–£1,500
SAM Unit Failure
SeriousWater tracks down the wiring loom from the wiper tray and enters the SAM unit. This is the most common cause of "dead" Roadsters.
Symptoms: Horn sounding continuously, Car won't turn off...
Est. repair cost: £500–£1,200
Snapped Aircon Pipes
MinorThe AC pipes are prone to vibration-induced cracks, leading to total loss of refrigerant.
Symptoms: AC not cold, Visible oily residue on the pipes near the compressor
Est. repair cost: £250–£400
Buying Tips for the 2004 Smart Roadster (452)
- Assume the car leaks unless proven otherwise — water ingress is the Roadster's biggest enemy
- Lift the carpets and feel the foam backing for water — if wet, the SAM unit may be compromised
- Check for the "Evil Twin" drip loop and cover modifications to protect the SAM
- A post-2004 model with specialist service history is the best buy
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