About this model
The second-generation Ford Focus (Mk2, 2004-2008 and facelift Mk2.5, 2008-2011) is one of the most popular compact cars on BiH roads. It is imported in large numbers from Germany, the UK, Italy and France, typically with 150,000-250,000 km on the clock. The Focus Mk2 offered excellent driving dynamics for its class, a spacious interior for a compact and low fuel costs with the diesel engine. In BiH it is chosen by younger drivers as a first serious car and by families who need an economical daily driver for both city and highway use. The 1.6 TDCi engine was co-developed with the PSA group and is known by its DV6 designation. The same block is used in the Peugeot 307/308, Citroën C4 and Ford C-Max, so parts are widely available on the BiH market. For owners and buyers in the Banja Luka area, our workshop covers the full range of Ford repairs.
Engines and variants
This model is most commonly found in BiH with the following engines.
G8DA/G8DB (1.6 TDCi 90 HP): The lower-output variant with 66 kW, fixed-geometry turbo and no DPF on early examples (up to 2005). Simpler to maintain because there is no variable-geometry turbo or DPF regeneration to worry about. The EGR valve and dual-mass flywheel remain the weak points. This is the variant that lasts longest if the oil is changed regularly and the engine is not used exclusively for short trips. Parts availability is excellent because the engine is shared with the C-Max and PSA models.
HHDA/HHDB (1.6 TDCi 109 HP): The higher-output variant with 80 kW, variable-geometry turbo (VGT) and mandatory DPF from 2005 onwards. A VGT with stuck vanes and a DPF clogged by city driving are the typical issues with this version. It is more powerful and more comfortable on the highway but demands more disciplined maintenance. The Mk2.5 facelift (2008+) revised the engine electronics for better regeneration management, but the fault profile remains essentially the same.
GPDA (1.6 TDCi 109 HP, Euro 5): A late variant with improved emissions, rarer on the BiH market. The underlying DV6 block is the same, but the software and DPF regeneration strategy differ from the earlier HHDA/HHDB versions. The fault profile is largely identical, though the more aggressive DPF strategy means more frequent failed regenerations on short city trips.
Reliability and reputation on the BiH market
The Focus Mk2 with the 1.6 TDCi has proven on BiH roads that it can serve reliably past 300,000 km, but only with regular and shortened oil-change intervals. In our workshop we most commonly see examples where previous owners stretched the oil-change interval past 15,000 km, and the consequences are clear: a coked-up turbo oil feed pipe, a destroyed turbo and a clogged DPF. From experience we know that cars with documented short oil intervals (10,000 km or less) come in with significantly fewer serious problems.
Parts for the DV6 engine are among the most available on the BiH market because the same block is used by Peugeot, Citroën and Ford, so competition among manufacturers (Bosch, Valeo, Sachs, LuK) keeps prices reasonable. The Focus Mk2 body is decently protected against corrosion on most examples, but on older Mk2 cars (2004-2007) the sills and wheel arches can show signs of rust, especially on UK imports where the roads are salted in winter.
Compared to direct competitors in its class (Opel Astra H 1.7 CDTI, VW Golf 5 1.9 TDI, Peugeot 307 1.6 HDi), the Focus offers better driving dynamics and a more communicative steering feel, but has a specific weakness in the form of a turbo that is sensitive to oil quality. The Golf 5 holds a higher price on the used market, but a Focus with the same mileage and documented service history represents better value for a buyer who understands what this engine needs.
Common faults we see
From our day-to-day experience, here is what most commonly comes in for repair on this model.
1. Turbocharger and blocked oil feed pipe
Symptom: Power loss under acceleration, whistling or hissing from the engine bay, bluish smoke at full throttle, check engine light.
The DV6 1.6 TDCi has a thin oil feed pipe to the turbo that gradually clogs with sludge from the engine oil. When oil flow drops below a critical level, the turbo bearings are starved of lubrication and the turbo fails. The problem is worse on cars where the oil was changed at intervals longer than 15,000 km or where the wrong oil specification was used. The banjo fitting on the oil feed pipe contains a small mesh filter that clogs first, and most owners do not even know it exists. More on prevention in our guide on how to extend the life of a diesel turbo.
Advice: At every oil change, inspect the turbo oil feed pipe and clean or replace the mesh filter in the banjo fitting. It is a small, inexpensive part that protects the turbo from a costly rebuild.
2. Injector seals - "black death"
Symptom: Hissing sound from the engine area, black oily deposits around the injectors, smell of exhaust gases under the bonnet.
The copper injector washers wear over time and exhaust gases under pressure blow back into the engine bay. Carbon deposits build up around the injector seats and harden. If ignored, the deposits seize the injector in the cylinder head and removal becomes a serious job with a risk of head damage. On the DV6 engine this is particularly dangerous because the carbon that forms also enters the engine oil, accelerating the clogging of the turbo oil feed pipe and starting a chain of failures: seals leak, oil gets contaminated, turbo fails.
Advice: Replacing the copper washers is a relatively simple and affordable job while the injector is still movable. At every service, check for black deposits around the injectors and act at the first sign.
3. DPF filter and failed regenerations
Symptom: DPF warning light on the dashboard, power loss, car enters limp mode, increased fuel consumption.
The Focus Mk2 with a DPF (109 HP variant from 2005 onwards) has the same problem as all city-driven diesels: short trips prevent the automatic regeneration from completing. A specific issue with the Focus is that failed regenerations dilute the engine oil with fuel, because fuel is injected into the cylinders during regeneration but does not burn completely. If the oil level rises above maximum, fuel has entered the oil and an immediate oil change is needed before bearing damage occurs. More on the mechanism in our guide on what a DPF filter is and why it clogs.
Advice: Once a week, drive the car for 20-30 minutes on the open road at 2,500+ RPM. Check the oil level every 1,000 km. If the level is above maximum, change the oil immediately.
4. Dual-mass flywheel (DMF)
Symptom: Vibrations at idle that transfer through the whole car, knocking when starting and stopping the engine, juddering when pulling away in first or reverse gear.
The DV6 engine produces considerable vibration for its displacement, and the DMF absorbs it until the internal springs wear out. On the Focus Mk2 the DMF typically wears out in the 130,000-180,000 km range, depending on driving style and usage pattern. City driving with frequent stop-start wears it out faster. The concentric slave cylinder on this model is inside the gearbox, so replacing it requires gearbox removal. It is always done together with the flywheel.
Advice: When the DMF is replaced, always include the full clutch kit (disc, pressure plate, bearing) and the slave cylinder. Removing the gearbox twice for separate jobs is a false saving.
5. EGR valve and intake manifold
Symptom: Power loss, rough idle, black smoke on acceleration, check engine light, difficult cold starts.
The EGR on the DV6 engine clogs with carbon, especially on cars that only do short city trips. On the Focus Mk2 access to the EGR is relatively good compared to some other models, making cleaning or replacement more straightforward. Over time carbon also builds up in the intake manifold, restricting airflow. Cleaning the EGR helps for 20,000-30,000 km depending on driving conditions, but if the mechanism is mechanically worn a replacement is needed.
Advice: We recommend cleaning the intake manifold and EGR valve every 80,000-100,000 km depending on usage. If symptoms are present, a diagnostic check will reveal the exact state of the EGR and intake.
6. Thermostat stuck open
Symptom: Engine never reaches operating temperature, cabin heater blows lukewarm air, increased fuel consumption.
The thermostat sticks in the open position and coolant circulates through the radiator constantly. The engine runs at 60-70 degrees instead of 90. Besides weak heating, this means the DPF cannot regenerate properly because it needs high exhaust gas temperatures. So one cheap fault triggers an expensive DPF problem. The issue is particularly sneaky because there are no dramatic symptoms, so owners only notice it when the DPF starts throwing fault codes.
Advice: Replace the thermostat preventively at 80,000-120,000 km, depending on the age of the car and the state of the cooling system. A cheap part that prevents an expensive cascade of problems.
7. Front suspension and anti-roll bar
Symptom: Knocking over bumps, clunking when going over potholes, loose front end feel, uneven front tyre wear.
The anti-roll bar drop links on the Focus Mk2 are a well-known weak point and typically wear out at 40,000-70,000 km depending on road conditions. Front lower arm bushings last longer (80,000-120,000 km) but on BiH roads they also fail earlier. The Focus Mk2 has an excellent suspension from a driving dynamics perspective, but the more complex geometry means more parts that wear.
Advice: Check bushings and drop links at every service. Replace drop links in pairs, even if only one is visibly damaged.
8. Instrument cluster
Symptom: Gauges work intermittently or not at all, display shows dashes instead of mileage, warning lights illuminate randomly, temperature and fuel readings disappear periodically.
The Focus Mk2 is well known for instrument cluster problems. The root cause is weak solder joints on the printed circuit board inside the cluster that crack from heating and cooling cycles. The issue affects both dashboard types (pre-facelift and facelift). The Mk2.5 facelift introduced an LCD display that also degrades over time. The fault is not engine-related but is specific to the Focus Mk2 platform and common on examples with 150,000+ km.
Advice: Cluster repair (resoldering the joints) is possible and significantly more affordable than replacing the entire unit. Look for a specialist auto electrician with experience on Ford clusters.
Service and maintenance
The timing belt on the 1.6 TDCi is replaced at 90,000-120,000 km or every 5-6 years, depending on driving conditions and belt age, whichever comes first. Do not wait for the upper limit because the DV6 is an interference engine and a snapped belt means a destroyed head. The kit always includes the water pump, tensioner and idler.
Oil specification is 5W-30 Ford WSS-M2C913-D for non-DPF examples, and Ford WSS-M2C934-B (low-SAPS, ACEA C2/C3) for DPF examples. Oil change interval is 10,000-12,000 km maximum for mixed driving and 10,000 km for predominantly city use. The factory interval of 20,000 km is too long for BiH conditions and is the main reason for premature turbo failure on this engine. Fuel filter replacement every 25,000-35,000 km depending on fuel quality.
Which oil for the Ford Focus 1.6 TDCi
For DPF-equipped examples, a low-SAPS 5W-30 oil with Ford WSS-M2C934-B specification (ACEA C2/C3) is mandatory. For earlier non-DPF examples (up to 2005), WSS-M2C913-D is also acceptable, more widely available and slightly cheaper. Do not use standard 5W-40 oil on a DPF-equipped car because the ash from such oil clogs the filter and shortens its life. When buying oil, check the actual specification on the container because the viscosity rating 5W-30 alone is no guarantee that the oil carries Ford approval.
Owner tips
- History check before deposit: the Focus 1.6 TDCi was imported in huge numbers from Germany, the UK, Italy and France, so history varies dramatically from one car to the next. Run the VIN through carVertical to pull the full history. The report typically shows actual odometer readings by date, recorded accidents, number of previous owners and theft or total-loss flags. We consider it essential for import examples as a basic layer of protection against hidden fleet history. Use code GAGA at checkout for 20% off.
- Change the oil at 10,000 km maximum, specification Ford WSS-M2C934-B for DPF examples. The DV6 engine does not tolerate extended intervals because the turbo suffers first.
- Once a week, drive the car for at least 20-30 minutes on the open road so the DPF can regenerate. City-only driving clogs the DPF much faster.
- Check the oil level every 1,000 km. If the level is above maximum, fuel has entered the oil during a failed regeneration and an immediate change is needed.
- When replacing the timing belt, always include the water pump, tensioner and idler as a complete kit.
Frequently asked questions
Is the Ford Focus 1.6 TDCi reliable at 200,000 km?
Yes, provided the oil was changed at short intervals (10,000 km or less) and the turbo oil feed pipe was cleaned regularly. The engine itself is proven and can exceed 300,000 km. Problems arise on cars where oil was changed at 20,000 km intervals, because the feed pipe clogs and the turbo fails. When buying a car with 200,000 km, ask for proof of regular servicing.
Does the Focus 1.6 TDCi have a belt or chain?
It has a timing belt, not a chain. Replacement is recommended at 90,000-120,000 km or every 5-6 years, whichever comes first, depending on driving conditions and belt age. The DV6 is an interference engine, so a snapped belt means the valves hit the pistons and the head is destroyed. If you are buying a used Focus and there is no proof of belt replacement, factor that cost into the price.
What is "black death" on the injectors?
The copper injector washers leak and exhaust gases under pressure create black deposits around the injector seats. It is recognisable by black oily traces on the engine cover around the injectors. Replacing the washers is a cheap job while the injector still comes out normally. If neglected, the deposits seize the injector and removal becomes a serious and expensive operation.
What is the difference between the 90 HP and 109 HP variant?
The 90 HP variant (G8DA) has a simpler fixed-geometry turbo and early examples come without a DPF, making it easier to maintain. The 109 HP variant (HHDA/HHDB) has a variable-geometry turbo and DPF, so it performs better on the highway but requires more disciplined servicing. For an owner who drives mostly in the city, the 90 HP version is the safer bet.
Can LPG be fitted to the Focus 1.6 TDCi?
No, diesel engines are not converted to LPG. Autogas (LPG) only works on petrol engines. If you want a Focus for an LPG conversion, choose the petrol variant (1.6 Ti-VCT or 2.0 Duratec). For LPG conversion consultations on a petrol variant, get in touch.
What is the real fuel consumption of the Focus 1.6 TDCi?
In the city it realistically uses 5.5-6.5 litres, on the open road 4.0-4.5 litres. Combined, most owners report 5.0-5.5 litres. If consumption jumps above 7 litres in the city, check the EGR valve, air filter and injector condition.
Is the Focus Mk2 better than the Golf 5?
The Focus Mk2 offers better driving dynamics, more communicative steering and a lower purchase price for the same mileage bracket. The Golf 5 has a higher-quality interior, holds its value better on the used market and has a somewhat more robust 1.9 TDI engine (BKC/BXE) that is less sensitive to oil intervals. For a driver who wants an enjoyable drive for less money, the Focus is an excellent choice. For someone planning to resell, the Golf holds its value better.
If you notice any of these symptoms, drop by the workshop - it is better to check early than to repair expensively.