Peugeot 307 I (3A/C) (2001 – 2005)

Reliability score : 4.5/10

The first-generation Peugeot 307 (Phase 1, internal code 3A/C for the sedan) marked a radical break from the 306. Voted Car of the Year 2002, it adopted a semi-high architecture favoring interior space and safety. Dynamically, it offered an exceptional comfort/road holding compromise, typical of Peugeot's expertise. However, this generation introduced a new multiplexed electronic architecture (VAN/CAN network) which proved to be a real industrial disaster during the first years of production. Electronic failures (BSI, COM2000) and problems related to new diesel emission control technologies (FAP) and transmission (dual-mass flywheel) heavily tarnished its reputation. This is a model to approach with extreme caution on the used market.

✅ Strengths

Superb road handling (precise and safe chassis)
Generous interior space and boot volume for its time
Suspension comfort and sound insulation (on high-end versions)
Mechanical robustness of the 2.0 HDi 90 block and petrol engines
Passive safety (solid structure, 4 Euro NCAP stars)

⚠️ Weaknesses

Catastrophic multiplexed electronics (2001-2003): BSI, COM2000, various bugs
Disastrous reliability of the dual-mass flywheel (2.0 HDi 110 and 1.6 HDi 110)
Recurrent turbo failures on the 1.6 HDi 110
Complex and costly FAP management (cerine, differential pressure sensors)
Premature wear of interior plastics and stalks
High weight penalizing small engines (1.4i, 1.4 HDi)

🎯 Verdict

The Peugeot 307 Phase 1 is a car full of dynamic and family qualities, but it bore the brunt of multiplexing and the first generations of FAP at PSA. As an expert, I strongly advise against buying models from 2001 to 2003, which are true nests of electronic failures. If you are looking for an economical diesel, the 2.0 HDi 90 is the only truly safe choice, as it lacks a FAP and a dual-mass flywheel. The 1.6 HDi 110 is to be avoided unless the turbo, injector seals, and flywheel have been recently replaced with supporting invoices. Always prefer a late Phase 1 model (2004-2005) or opt for a significantly more reliable Phase 2 (after mid-2005).

Common issues

Défaillance du module COM2000 (bloc commodos) Medium

🔧 100 000 – 180 000 km

💶 300 – 600 €

Tester toutes les fonctions (clignotants, essuie-glaces, klaxon) avant achat.

Usure prématurée du turbo (surtout 1.6 HDi) High

🔧 120 000 – 200 000 km

💶 1 000 – 2 000 €

Vérifier l'historique des vidanges, crucial pour la longévité du turbo.

Encrassement ou défaillance de la vanne EGR Medium

🔧 100 000 – 180 000 km

💶 300 – 600 €

Privilégier les trajets longs et réguliers pour éviter l'encrassement.

Usure du volant moteur bi-masse et/ou embrayage High

🔧 150 000 – 220 000 km

💶 1 200 – 2 000 €

Écouter les bruits au ralenti et tester l'embrayage pour signes d'usure.

Colmatage du filtre à particules (FAP) - si équipé Medium

🔧 150 000 – 250 000 km

💶 600 – 1 500 €

S'assurer que le véhicule a été utilisé sur des trajets permettant la régénération.

Estimated maintenance costs

Oil change	£90 – 160
Timing belt	£550 – 1 100
Clutch	£800 – 1 500
Complete brakes	£270 – 540
Estimated annual budget	£650 – 1 300

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