About this model
The second-generation Citroen C4 (internal code B7) is a compact hatchback produced from 2010 to 2018. It is extremely common on BiH roads because it was mass-imported from France, Italy and Germany as a relatively affordable, comfortable city car with low fuel consumption. Today, most examples on the market sit between 100,000 and 200,000 km, model years 2011-2015. The design is more modern than the first C4, the cabin more spacious, but the electronics are considerably more complex and require more careful maintenance. For BiH buyers, the appeal lies in the economical 1.6 HDi engine (designations DV6C and DV6DTED) which manages 4.5-5.5 litres per 100 km in mixed driving. If you want to know more about Citroen as a brand and what we most often service, check out our Citroen servicing page.
Engines and variants
This model is most commonly available in BiH with the following engines.
DV6DTED (9HP/9HJ) - HDi 90/92: The lower-power 1.6 HDi variant with 90-92 HP, the most common on the BiH market, typically in lower trim levels. A less stressed turbo means longer turbo life than on the stronger version, but DPF problems are identical since owners predominantly drive in the city. This is the variant we recommend for daily urban use because it is simpler to maintain. Parts are readily available and overall service costs are the lowest in the range.
DV6C (9HR) - e-HDi 112/115: The stronger variant with 112-115 HP, often paired with the robotised ETG6 gearbox and start-stop system. The turbo operates under higher pressure so it fails earlier, and the ETG6 robotised gearbox has its own problems with the clutch actuator which requires periodic calibration. If you are buying this version, choose manual transmission only. Fuel consumption is similar to the weaker variant, but motorway performance is noticeably better.
DV6FD (BHY) - BlueHDi 100: The newer Euro 6 variant with 100 HP, AdBlue system (SCR) and improved DPF filter. In addition to standard DPF problems, it adds the AdBlue pump and NOx sensor as potential fault sources after 100,000 km. This variant appears from 2014 onwards and does not yet have high mileages in BiH, but the AdBlue system brings its own specific issues worth keeping in mind.
Reliability and reputation on the BiH market
The Citroen C4 II is not a bad car in terms of basic mechanicals. The 1.6 HDi engine has been produced in the millions and is well known to workshops across Europe. The problem lies in the electronics and peripheral systems which are considerably more complex than competitors like the Golf 6 or Astra J of the same era.
On the BiH market it is bought primarily for its low price and low consumption, but owners are often surprised by the cost of electrical faults. Parts are available and relatively affordable for the engine and suspension, but the BSI module and specific PSA electronics require diagnostics with the proper tool (Lexia/DiagBox). In our workshop, we most commonly see examples at 130,000-180,000 km that come in precisely because of a combination of DPF problems and electrical instability.
Compared to the competition in the segment, the C4 II is more comfortable but demands a more disciplined owner regarding maintenance. Those who service regularly and do not ignore small symptoms can expect solid reliability to 250,000 km and beyond.
Common faults we see
From our hands-on experience, here is what most often comes in for repair on this model.
1. DPF filter - clogging and regeneration
Symptom: Orange DPF warning light on, loss of power, engine enters limp mode. Frequent failed regeneration on short urban routes.
The DV6C and DV6DTED engines have the DPF integrated close to the turbo. On short trips (city driving under 10 km) regeneration does not complete, particulates accumulate and the filter clogs. The problem escalates after 120,000-150,000 km without adequate maintenance. You can read more about what a DPF filter is and why it clogs in our guide.
Advice: At least once a week, drive 20-30 minutes on the open road in third or fourth gear above 2500 rpm. If the DPF is already critical, a forced regeneration via diagnostics is the first step before replacement.
2. Turbocharger - oil leaks and bearing wear
Symptom: Whistling on acceleration, blue smoke from the exhaust, loss of power, oil on the intake side of the intercooler.
The turbo on DV6C engines (especially the 9HR variant with 112 HP) is compact and operates under high pressure. Poor lubrication due to extended oil change intervals or a clogged oil filter accelerates bearing wear. The problem typically appears after 150,000-180,000 km, depending on maintenance quality.
Advice: Use quality oil and change it at 10,000 km, not the manufacturer's 20,000. After shutting off the engine on the motorway, let it idle for 30 seconds so the turbo can cool down.
3. EGR valve - clogging and seizure
Symptom: Rough idle, engine stalling, fault code P0401 or P0402, increased fuel consumption.
The EGR valve on 1.6 HDi engines clogs with soot and carbon, particularly on vehicles that predominantly drive in the city. On the C4 II, the electric EGR is easier to diagnose but more expensive to replace than the pneumatic type on older versions. Clogging develops gradually and early symptoms are mild, but if ignored the engine starts entering limp mode.
Advice: Cleaning the EGR valve every 60,000-80,000 km extends its lifespan. If the valve is mechanically damaged (does not fully close), replacement is the only solution.
4. Cabin blower motor - failure
Symptom: Complete loss of heating and ventilation in the cabin, no fan speed works, sometimes a quiet buzzing without airflow.
This is a specific and common fault on the C4 II generation. The cabin blower motor fails typically between 50,000 and 80,000 km. The cause is usually worn brushes in the electric motor or an overheated blower resistor. The fault is particularly unpleasant in winter because without the blower there is no heating or windscreen demisting.
Advice: Replacing the complete blower is relatively straightforward as it is accessed from beneath the passenger side. If the resistor is undamaged, just the blower motor can be replaced.
5. Injector return lines - fuel leaks
Symptom: Diesel smell in the engine bay, visible wetness around the injectors, difficult starting after the car has been standing for a long time.
The plastic return lines on the injectors harden and crack over time. It is a cheap part but causes fuel leakage and pressure loss in the system, making cold starts difficult. The problem appears after 5-7 years of age, regardless of mileage.
Advice: Replacing the return line set is a preventive job we recommend during any major service after 100,000 km. Parts are cheap, labour takes about an hour.
6. Dual-mass flywheel - wear
Symptom: Knocking and rattling on engine start-up and shutdown, vibrations at idle with a gear engaged, juddering when pulling away.
The 1.6 HDi engine with 92 or 112 HP uses a relatively lightweight dual-mass flywheel that takes strain, especially in city driving with frequent stop-start cycles. Service life is 150,000-200,000 km depending on driving style and predominant usage (urban or mixed).
Advice: Always replace the dual-mass flywheel together with the clutch and release bearing. The full kit pays off because access is the expensive part of the job (gearbox removal).
7. Crankshaft and camshaft sensors - intermittent faults
Symptom: Engine cuts out while driving without warning, difficult starting, unstable RPM, fault codes P0335 or P0340.
The crankshaft and camshaft position sensors on DV6 engines are known for intermittent failures. They work and then they don't, depending on temperature. This makes diagnosis difficult because the fault is not always stored in the engine ECU.
Advice: If the engine spontaneously cuts out and diagnostics shows no permanent fault, replace the crankshaft sensor preventively. The part is cheap and the problem is dangerous in traffic because the vehicle loses power steering and brake assist.
8. BSI module - electrical faults
Symptom: Random warning lights on the instrument cluster, central locking not working properly, wipers activating on their own, starting problems.
The BSI (Built-in Systems Interface) is the central electronic module that manages body electronics. On the C4 II it is known for sensitivity to moisture and connector corrosion. A BSI module fault simulates dozens of other faults because it controls virtually all comfort functions. Proper vehicle diagnostics with a PSA tool is the only way to distinguish a BSI problem from individual faults.
Advice: Before replacing the BSI module (which requires programming), check the condition of connectors and earth points. Often it is enough to clean the contacts and protect them from moisture.
Service and maintenance
The timing belt on all 1.6 HDi variants is due at 150,000 km or 10 years according to the manufacturer, but for BiH conditions we recommend replacement at 120,000-130,000 km depending on driving regime. Change the oil at 10,000 km maximum (Total Ineo First 0W-30 or equivalent meeting PSA B71 2312 spec), shorter if you drive exclusively in the city.
Fuel filter every 20,000-30,000 km is mandatory because BiH fuel contains more impurities. The DPF requires occasional longer drives and if you drive exclusively in the city, expect problems. The ETG6 gearbox (if fitted) requires clutch actuator calibration every 60,000-80,000 km, depending on the intensity of urban driving.
Owner tips
- Drive at least once a week for 20+ minutes on the open road above 2500 rpm to enable DPF regeneration
- Before buying a specific example: use the chassis number to pull the full history via carVertical. From international registers you get real odometer readings by date, recorded accidents, number of previous owners and indicators of theft or total loss. We consider this essential before buying any used car, especially with French imports where mileage rollback is most common. When paying for the report you can use code GAGA for a 20% discount.
- Use oil meeting PSA B71 2312 spec (Total Ineo First 0W-30 or equivalent) and change at 10,000 km
- Check the condition of injector return lines at every service after 100,000 km as they crack without warning
- If you have an ETG6 gearbox, do not hold the car on a hill in gear alone without the handbrake as the actuator wears faster
- Protect the BSI module from moisture. If you notice water entering the passenger footwell area, immediately check the windscreen seals
Frequently asked questions
Is the Citroen C4 II 1.6 HDi reliable up to 200,000 km?
The engine itself is durable and easily lasts 250,000+ km with regular maintenance. Weak points are the electronics (BSI module, sensors) and the DPF system which requires attention. If you maintain intervals and occasionally drive longer distances, the C4 II is a solid choice.
Which engine is the best choice in the Citroen C4 II?
For BiH conditions we recommend the DV6DTED (9HP) with 92 HP and a manual gearbox. Powerful enough for daily driving, and you avoid the problems with the ETG6 robotised gearbox that comes with the stronger 112 HP version.
Is it worth fitting LPG to a Citroen C4 II?
The C4 II comes exclusively with diesel engines in the 1.6 HDi variant, so LPG conversion is not an option. If you want a gas-powered car, look at petrol C4s with the 1.2 PureTech or 1.6 VTi engine, though those engines have their own problems with the timing chain and turbo system.
How much does DPF filter replacement cost on the C4 II 1.6 HDi?
Before replacing the filter, always try a forced regeneration with a diagnostic tool. If the filter is physically damaged or completely clogged, an aftermarket DPF is considerably more affordable than the original. The price depends on the specific condition - get in touch for an estimate.
Is the ETG6 gearbox on the C4 II problematic?
The ETG6 robotised gearbox (which comes with the e-HDi 112 version) is the weakest point of that package. The clutch actuator wears, the gearbox jerks during shifts, and repair requires specialist diagnostics. If you are buying a used C4 II, choose a manual gearbox.
What to check when buying a used Citroen C4 II?
Make sure to check the heating and cabin ventilation (blower motor), run diagnostics for DPF condition and stored fault codes, inspect for leaks on the injector return lines, and test all electrical functions (central locking, wipers, instrument cluster).
Why does my C4 II cut out while driving without warning?
The most common cause is a faulty crankshaft sensor that intermittently fails. Other possible causes are the BSI module and power supply issues. Always run diagnostics because the problem is dangerous in traffic as the vehicle loses power steering and brake assist.
If you notice any of these symptoms, stop by our workshop - it is better to check early than to repair expensively.