Volkswagen Passat2018

Known issues

• DPF (Diesel Particulate Filter) clogging and forced regeneration cycles, especially on low-mileage urban driving; can lead to limp mode and expensive cleaning
• EGR valve carbon buildup causing rough idle, reduced power, and fault codes; replacement typically €800–€1,200 labour at independent garages
• DSG7 gearbox shudder and hesitation on low-speed manoeuvres; software updates help but some units require mechatronic replacement (€2,500–€4,000)
• Turbocharger bearing wear and oil sludge issues, particularly if oil services are delayed; failure costs €1,200–€1,800 for exchange unit
• Fuel injector carbon deposits causing hard starting and reduced fuel economy; can be address by injector cleaning or replacement (€150–€400 per injector)
• Coolant leaks from water pump and heater matrix; manifests as misting inside cabin or puddles under car; €200–€600 repair

Good for

• Genuine diesel fuel economy (45–50 mpg real-world on mixed driving) and low CO₂ emissions for 2018
• Comfortable, spacious cabin and boot; mature, quiet motorway cruiser with composed ride
• Strong resale value and low depreciation compared to petrol equivalents; parts availability good across Ireland and UK
• Adequate towing capacity (1,800 kg) and reliable engine power delivery when well-maintained