About this model
The Peugeot 307 arrived in BiH as a replacement for the 306 and stayed popular thanks to its roomy compact package, the low fuel consumption of the 1.6 HDi engine, and affordable used-market prices. Around here you mostly see the SW estate variant and the five-door hatchback from the 2004-2008 period, when the car was at the peak of its sales. Buyers are typically families, taxi drivers and people looking for an economical diesel for travel - and the 1.6 HDi with its 90 or 110 horsepower delivers exactly that. The car is old enough that it has dropped into the lower price bracket, which makes it a frequent first or second family car in Banja Luka and the surrounding area. The main problems are not factory defects - they come from age, poor fuel and a lack of regular maintenance under previous owners.
Engines and variants
This model is most commonly available in BiH with the following engines.
9HX (DV6ATED4) 1.6 HDi 90 hp - without DPF - the basic 90 hp variant with a fixed-geometry turbo and no particulate filter, built 2004-2007. The most reliable variant of all the DV6 engines we have seen in the workshop - no DPF, no dual-mass flywheel on earlier examples, the fewest electronic problems. If you are choosing a 1.6 HDi to keep for the long haul, this is the version. Parts are easy to find, and real-world consumption sits around 5.0-5.5 L/100 km.
9HZ (DV6TED4) 1.6 HDi 110 hp - with DPF - the stronger version with variable-geometry turbo, DPF and dual-mass flywheel, built 2004-2008. It is more powerful and more pleasant to drive, but it carries all the heavier components: the variable-geometry turbo is a more expensive repair, the DPF is a costly replacement, and the dual-mass flywheel adds another potential item. More potential cost after 200,000 km, but also more comfortable on the open road and when overtaking.
9HY/9HV (DV6ATED4) 1.6 HDi 90 hp - facelift with DPF - the 90 hp facelift version that gained a DPF to meet Euro 4 norms, period 2006-2008. It combines modest 90 hp output with the drawbacks of the DPF system, which makes it a weaker long-term option than the original 9HX. If you find an example, check whether the DPF is still original and working - it is often cut out or replaced with a hollow element, which is illegal at the technical inspection.
Reliability and reputation on the BiH market
The Peugeot 307 1.6 HDi has earned a mixed reputation in BiH. On one hand, the engine is notably economical (5.0-5.8 L/100 km combined in real-world driving) and will run past 300,000 km with regular maintenance. On the other hand, the complexity of the DPF system, a sensitive turbo and frequent BSI module electronic gremlins can frustrate any owner without the patience for French cars. Spare parts are available in any decent parts shop in Banja Luka at reasonable prices, and original Peugeot parts and quality aftermarket (Valeo, Sachs, Bosch, Sasic) hold up well. Buyers typically choose the 307 because they get a roomy car with low fuel consumption for little money - but it is a car for an owner who invests in regular maintenance, not for someone who drives until it stops. In the workshop we most often see examples where previous owners stretched the oil change interval beyond the limit, and the engine and turbo have paid the price.
Common faults we see
From our practice, here is what most often comes in for repair on this model.
1. Turbocharger and clogged oil supply
Symptom: Power loss above 2,000 rpm, bluish smoke under acceleration, whistling or metallic noise from the turbo, engine warning light.
The DV6 1.6 HDi is known for thin oil supply pipes to the turbo that gradually coke up due to long oil change intervals and poor fuel. When oil flow drops, the turbo bearings lose lubrication and the turbo fails - often before 200,000 km if the oil was rarely changed.
Advice: At every oil change on a 307 1.6 HDi we inspect and, if needed, replace the oil supply pipe to the turbo. It is a small part that saves the turbo from a serious overhaul, and the cost of that job is nowhere near the cost of a turbo rebuild.
2. DPF (diesel particulate filter)
Symptom: DPF warning light, forced power reduction, frequent regeneration cycles, thick black or white smoke, increased fuel consumption, oil loss through the DPF additive (Eolys).
The DPF version uses Eolys fluid added to the fuel to lower the regeneration temperature. A car in BiH driven only in the city and on short trips cannot complete a regeneration, so the filter clogs up. The Eolys tank gradually empties, and the differential pressure sensors around the DPF fail.
Advice: Periodically take the car out of the city, at least 30-40 km on the open road, so the DPF can regenerate. When the pressure sensor goes haywire - replace it, do not just software-reset it. Removing the DPF is illegal at the technical inspection.
3. Injectors (Siemens and Bosch)
Symptom: Hard cold start, knocking at idle, power loss, exhaust smoke, increased fuel consumption, ticking noise from the cylinder head.
On earlier 9HX and 9HZ variants the Siemens injectors (later Bosch) lose precision in the 180,000-220,000 km range, depending on fuel quality and filter change intervals. Poor fuel in BiH speeds up nozzle wear. Leaking return pipes are also a frequent problem on older examples.
Advice: You do not jump straight to new injectors. First a test on the bench, then an assessment - often only one is bad and goes to a factory rebuild, which is significantly cheaper than a complete set of new ones.
4. EGR valve and intake manifold
Symptom: Unstable idle, rpm fluctuations, engine warning light, slow return to idle when decelerating, smoke under acceleration.
The EGR on the DV6 engine tends to stick open or closed due to soot deposits, especially on cars driven in the city. The intake manifold can fill up with an oily sludge (combined with the positive crankcase ventilation) and block the air flow.
Advice: Mechanical cleaning of the EGR and intake manifold is a job we do regularly - it takes a few hours and extends engine life without replacing expensive parts.
5. Dual-mass flywheel and clutch
Symptom: Knocking at engine start and shut-off, idle vibration, jerking when pulling away, strange noise from the gearbox when releasing the clutch.
The dual-mass flywheel is standard on the 110 hp (9HZ) version and on later 90 hp variants. A note of caution: on DPF versions the flywheel carries a heavier load due to regenerations. Its life typically falls in the 180,000-220,000 km range, depending on driving style and service history.
Advice: If the clutch is going, replace the dual-mass flywheel at the same time - going back into the gearbox a second time within half a year is wasted money. There are also quality solid flywheels as an alternative, but we do not recommend them to everyone.
6. BSI module (Built-in Systems Interface)
Symptom: Random errors on the dashboard, wipers turning on by themselves, central locking firing at random, battery draining overnight, car that will not start in the morning.
The BSI is the central electronic module that manages almost every function on the car. On the 307 it tends to act up due to cabin moisture (a leaking roof handle or seals), a worn battery, or unstable alternator voltage.
Advice: First rule - never disconnect the negative battery terminal while the car is running. Second - if the BSI is misbehaving, first check the battery and alternator before chasing the electronics. In most cases the cause is something small, not a new BSI.
7. Front suspension components (ball joints and shock absorbers)
Symptom: Knocking over bumps, vague steering, uneven tyre wear, vibration in the steering wheel, leaning in corners.
The Peugeot 307 has a known weak front end, particularly the front wishbones, ball joints and tie rod ends. Banja Luka streets and speed bumps speed up the wear. Shocks usually need changing in the 120,000-150,000 km range, depending on the condition of the roads the car runs on.
Advice: We check the suspension at every service. Only what is actually worn gets replaced - not, as some places do, the whole front end at once. A quality part (Lemforder, TRW, Sasic) lasts significantly longer than a cheap Asian one.
8. Oil leaks and valve cover gasket
Symptom: Visible oil drop on the concrete, smell of burnt oil, wet area of the engine around the valve cover, drop in oil level between services.
The valve cover on the DV6 engine has an integrated plastic gasket that becomes brittle with age and starts to leak. The rear crankshaft seal and the oil pump seal also tend to leak. Leaks onto the timing belt are dangerous - they shorten the life of the belt.
Advice: If you spot an oil drop on the floor, do not put off the repair. A small leak quickly becomes a big one, and timing belt contamination can end with bent valves.
Service and maintenance
The timing belt on the 1.6 HDi is, per the manufacturer's recommendation, changed at 160,000 km or 5 years (whichever comes first), always together with the water pump, tensioner and auxiliary belt - we advise not waiting until the upper limit if the car is driven in dusty or city conditions. For oil we recommend 5W-30 to ACEA C2 or PSA B71 2290 specification, with an interval of 10,000-15,000 km depending on driving conditions (shorter in the city, longer on the open road) - never the longlife 30,000 km that French service books sometimes call for. The fuel filter, in BiH conditions, we change in the 20,000-30,000 km range, because poor fuel speeds up injector wear. On DPF versions, occasionally check the Eolys additive level (the 9HZ tank holds about 5 litres and lasts 80,000-120,000 km, depending on driving style).
Owner tips
- Replace the oil supply pipe to the turbo at every second oil change - a small part that saves the turbo from serious damage.
- Drive the car out of the city regularly (at least once a month, 30-40 km on the open road) so the DPF can regenerate and clean itself.
- Watch the Eolys additive level if you have the DPF version - an empty tank means regeneration is not working properly.
- Change the fuel filter every 20,000-30,000 km, especially if you fuel up at suspect stations, because you are protecting injectors that are expensive to replace.
- When buying a used example, always insist on an OBD test, listen to the engine on cold start (injector knock) and watch whether the car smokes under acceleration (turbo and DPF).
Frequently asked questions
Is the Peugeot 307 1.6 HDi reliable to 300,000 km?
It is, provided it has been regularly maintained. The DV6 engine itself is proven durable, but its weak spots are the turbo, DPF and injectors. If you are buying an example with over 200,000 km, plan on a full inspection of all those components in the first year. With a documented service history, 300,000 km is realistic.
Which is the better variant - 90 hp or 110 hp?
If you want the fewest problems, go for the 90 hp (9HX) without DPF from 2004-2006. The 110 hp (9HZ) is stronger, but with the DPF and dual-mass flywheel it brings more potential cost. For family driving and motorway, the 110 hp is more pleasant - but for purely city driving, the 90 hp is the smarter choice.
Is it worth fitting LPG to a 307 1.6 HDi?
No. The 1.6 HDi is a diesel engine and LPG is not fitted to diesels. If you want to save on fuel, you need the 1.6 or 2.0 petrol version - but that brings other consequences. The differences in petrol vs. diesel consumption already even out through the price of the car itself and the price of fuel.
What is the problem with the DPF and can I remove it?
The DPF clogs because city driving never reaches regeneration temperatures. Removing the DPF is illegal - you will not pass the technical inspection, and patching the software can affect the rest of the engine. The real solution is regular longer drives out of the city plus a workshop forced regeneration when needed.
How long does the turbo last on the 307 1.6 HDi?
Typically 180,000-250,000 km, but it depends directly on oil quality and oil change intervals. If the oil was changed regularly and a quality oil with the right specification was used, the turbo will easily exceed 250,000 km. Its life is shortened by neglected oil or by frequent short trips.
What oil should I use for the 1.6 HDi?
Synthetic 5W-30 to ACEA C2 or PSA B71 2290 specification (Total Quartz INEO ECS, Castrol Edge, Mobil 1 ESP). Do not use ordinary longlife oils with a different specification, because the DPF requires a low-SAPS formulation. Change interval 10,000-15,000 km, depending on driving conditions, not 20,000 or 30,000.
Is the 307 a good first car?
From the price and fuel consumption point of view - yes. From the cost-of-maintenance and electronic-gremlin point of view, a better first car is something simpler, like a Golf 4 1.9 TDI or Opel Astra G. The 307 wants an owner who knows how to spend on maintenance, because French cars do not forgive neglect.
If you notice any of these symptoms on your 307 1.6 HDi, drop by the workshop - it is better to check early than to repair expensively.