Ford Focus I (DAW) (1998 – 2004)

Reliability score : 6.2/10

The first-generation Ford Focus (Mk1, codes DAW/DBW/DFW/DNW) marked a radical break upon its launch in 1998. Replacing the aging Escort, it introduced the 'New Edge' design and, above all, an unprecedented multi-link rear suspension in its category ('Control Blade'), redefining the C-segment's road handling standards. Voted Car of the Year in 1999, it received a facelift in late 2001 (headlights with integrated indicators, revised bumpers, improved sound insulation and equipment). Regarding diesel engines, it transitioned between the older generation of classic direct injection (TDDi) and modern common rail (TDCi). Today, it is a very affordable vehicle, but its reliability depends drastically on the choice of engine and maintenance history, especially for diesels.

✅ Strengths

Exceptional road handling (precise chassis, multi-link rear suspension)
Generous interior space and boot volume for its time
Exterior and interior design that has aged well (New Edge)
Remarkable reliability of Zetec-SE petrol engines (1.4 and 1.6)
Very affordable spare parts cost

⚠️ Weaknesses

Disastrous reliability of Delphi injection on TDCi diesels
Extreme susceptibility to corrosion (a common issue for Fords of that era)
Interior plastic quality (hard and prone to scratches)
Poor sound insulation (especially on Phase 1 and TDDi models)
Recurring electrical problems (instrument cluster, central locking)

🎯 Verdict

Buying a Ford Focus Mk1 diesel today is a risky bet. The 1.8 TDCi offers excellent driving pleasure but its Delphi injection system is a financial time bomb (metal filings), often more expensive to repair than the car's value. The 1.8 TDDi is mechanically indestructible, but its Bosch injection pump remains a known weak point and it is very noisy. The verdict for diesels is therefore to AVOID the TDCi, and to NEGOTIATE a TDDi only if the pump has already been replaced. Ironically, the best Focus Mk1 is a petrol version (1.6 Zetec), which proves to be extremely reliable, inexpensive to maintain, and allows full enjoyment of the car's excellent chassis. In any case, the number one enemy remains rust: a thorough inspection of the underbody is mandatory.

Common issues

Défaillance de la pompe d'injection VP30/VP44 (module électronique) sur 1.8 TDDi High

🔧 120 000 – 200 000 km

💶 1 000 – 2 500 € (échange standard ou réparation ECU)

Vérifier l'historique, attention aux démarrages difficiles et pertes de puissance.

Usure prématurée du volant moteur bi-masse (1.8 TDCi et certains TDDi) Medium

🔧 150 000 – 250 000 km

💶 800 – 1 500 € (souvent avec l'embrayage)

Écouter les bruits anormaux au ralenti ou lors des changements de vitesse.

Encrassement ou défaillance des injecteurs (moteurs 1.8 TDCi) Medium

🔧 180 000 – 250 000 km

💶 200 – 500 € par injecteur (réparation ou remplacement)

Surveiller la fumée, la consommation et les ratés moteur.

Encrassement de la vanne EGR (tous diesels) Low

🔧 100 000 – 180 000 km

💶 150 – 400 € (nettoyage ou remplacement)

Privilégier les trajets longs, nettoyer préventivement si possible.

Estimated maintenance costs

Oil change	£70 – 130
Timing belt	£500 – 1 000
Clutch	£750 – 1 400
Complete brakes	£220 – 480
Estimated annual budget	£550 – 1 100

Indicative estimates (independent garage, UK market). Prices vary by region and year.