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Volkswagen BKD
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Volkswagen BKD
Verdict
RISKY · 52/100
Est. cost /3yr
€1,800-5,500 over 3 years depending on whether cylinder head or coolant pipe work is required during that period; add €800-2,500 on top if a head replacement becomes necessary on a car with no prior history
Oil interval
10,000 km
Recalls
0
Worst issue
Porous / Cracked Cylinder Head
CRITICAL
Volkswagen BKD
Mk5/1Z · Mk5
Porous / Cracked Cylinder Head
€800-2,500
CRITICAL
Coolant Leak from Cylinder Head Pipe / Coolant Hose Connections
€50-300
HIGH
EGR / EGR Cooler Issues and Coolant Vacuum Problems
€200-600
MODERATE
Injector Failure / Injector Seat Issues
€300-1,200
MODERATE
Volkswagen BKD
Mk5/1Z · Mk5
•Pressure-test the cooling system and check for any coolant loss, porous heads are the BKD's defining flaw
•Inspect coolant reservoir for oil contamination or emulsification indicating head porosity or gasket failure
•Check the cylinder head casting revision code, version B heads are known to be problematic
•Examine all coolant pipes and hoses at the cylinder head for cracks, weeping, or previous DIY repair with tape or sealant
•Request full service history confirming oil changes no longer than every 10,000 km with correct VW 507.00 spec oil
•Scan the ECU for live and stored fault codes relating to EGR, injectors, and coolant temperature sensor before agreeing a price
•Ask specifically whether the cylinder head has already been replaced or remanufactured, and request the invoice
Volkswagen BKD
Mk5/1Z · Mk5
Cylinder Head (porous casting)
Check head revision code before purchase; pressure-test cooling system; budget for replacement or remanufactured head
80,000-180,000 km
Coolant pipes and hoses at cylinder head
Inspect and replace all plastic coolant pipes and rubber hoses preventively
100,000-150,000 km
Fuel injectors
Test injector return rates; replace seals and check seats at high mileage
150,000-220,000 km
EGR valve
Inspect and clean or replace EGR valve; check for fault codes
100,000-160,000 km
Volkswagen BKD
Mk5/1Z · Mk5
No recalls on record
Volkswagen BKD
Mk5/1Z · Mk5
✓Proven and widely understood engine with a large specialist community
✓Abundant parts availability due to high production volume
✓Good performance and torque (320 Nm) when mechanically sound
✓Pump-duse injectors are simpler and cheaper to diagnose than later common-rail units
✓Well-documented failure modes make pre-purchase inspection straightforward
Volkswagen BKD
Mk5/1Z · Mk5
Real consumption
6.4 L/100km
Official consumption
Not available
Oil interval
10,000 km
Oil spec
VW 507.00 5W-30 (longlife-capable full synthetic)
Est. cost /3yr
€1,800-5,500 over 3 years depending on whether cylinder head or coolant pipe work is required during that period; add €800-2,500 on top if a head replacement becomes necessary on a car with no prior history