VW Bora
Unit injector predecessor with 110 PS. Robust turbo diesel, but injectors are prone to wear. Good everyday engine with decent torque.
Solid TDI Bora
The 110 hp TDI is a reliable and economical everyday diesel in the Bora. No sporting pretensions, but economical.
Engine Weaknesses 5
The AHF 1.9 TDI 81kW is an interference engine. Replacement every 90,000 km or 5 years with water pump is mandatory. If neglected, catastrophic engine damage from valve contact is the result.
Symptoms: Sudden engine stop and loud noises on belt snap
The steel body of the PD element works its way into the aluminium cylinder head and leaks. Diesel dilutes the engine oil and the oil volume increases noticeably. Turbocharger destroyed by diluted oil.
Symptoms: Oil above normal level, engine oil smells of diesel, black smoke, turbo damage
The unit injectors (PD elements) on the AHF can wear at high mileage. Sporadic misfires and cold-start difficulties announce the failure. Cleaning every 80,000 km recommended.
Symptoms: Sporadic misfires, poor cold start, rough running, engine warning light
The EGR valve on the 1.9 TDI AHF tends to coke up and stick from soot particles. A failed EGR valve leads to noticeable power loss above 3,000 rpm.
Symptoms: Engine warning light, glow plug lamp flashing, approx. 15 hp power loss noticeable
The AHF 1.9 TDI distributor injection pump shows wear at very high mileage. Pump failures lead to starting problems and power loss.
Symptoms: Poor starting behaviour, power drop, diesel smell in the engine bay
Vehicle Weaknesses 9
The 02K manual gearbox up to build date 07/2001 has undersized rivets in the differential cage. These shear off, enter the gears, and cause complete economic write-off of the gearbox.
Thermomechanical overload in the ABS control unit can interrupt the earth connection. ABS and ESP drop out. Affects Bora without ASR/ESP, production period around 2002. Software update as remedy.
Sills and wheel arch edges trap moisture and dirt. Rust starts invisibly from the inside and only becomes visible externally when well advanced. Particularly affects neglected examples.
On the Bora 1J, the door lock switch accidentally triggers all electric windows via the comfort opening function when the key is held in the outer handle. Faulty door locks can also prevent the door being opened from the outside.
On the Bora 1J the A/C compressor and magnetic clutch fail at high mileage. Ageing A/C hoses corrode from the inside; refrigerant escapes and the compressor sustains damage through lack of lubrication.
Faulty microswitches in door locks and handles trigger the alarm for no reason or cause interior lighting to behave incorrectly. Inexpensive wear part but difficult to locate.
Suspension springs — particularly at the rear — break at high mileage. Shock absorbers lose damping from 80,000–120,000 km. Anti-roll bar rubbers and wheel bearings are also typical wear points.
The rubber coating on the dashboard, inner door handles, and centre console becomes sticky after 6–10 years and peels off in strips. Only parts replacement permanently eliminates the problem.
Handbrake Bowden cables corrode at the guide sections and seize. Particularly on vehicles that frequently stand outside. Typical problem over 100,000 km.