About this model
The Renault Clio 2 is one of the longest-serving models on BiH roads. Produced from 1998 to 2012 (the final years as Clio Campus), this small city car is still a daily sight in traffic. It is worth noting that the Phase 1 Clio 2 (1998-2001) did not have the 1.5 dCi engine - the diesel version only arrived with Phase 2 from 2001. Thanks to low running costs, compact dimensions, and the frugal 1.5 dCi engine, the Clio 2 was and remains a popular choice for daily city driving among Renault owners in our area. Most examples in BiH have between 180,000 and 350,000 km on the clock, meaning maintenance becomes the critical issue. The K9K engine is fundamentally tough, but the length of service and conditions on BiH roads bring all its weak points to the surface.
Engines and variants
This model is most commonly found in BiH with the following engines.
K9K 700/704 - 65 HP (48 kW): The base version with 65 HP, a fixed-geometry turbo and Delphi fuel injection. Available from 2001 (Phase 2/3) right through to 2012 as the Campus, this is the most common engine in BiH examples. The Delphi injectors and DCM1.2 ECU are the main weak point, as the early Delphi hardware is more fragile than the later Bosch systems that mostly went into the Clio 3. Parts are cheap and easy to find, and fuel consumption of 4.5-5.5 litres per 100 km makes it attractive for city driving.
K9K 702/722 - 80/82 HP (60 kW): The more powerful version with 80-82 HP, also running the Delphi system, more common in Phase 2 Clio 2 examples (2002-2005). Same Delphi problems as the 65 HP version, but the extra power puts more strain on the clutch and turbo, so the dual-mass flywheel tends to wear out sooner. Drivers who regularly use the motorway prefer this version, but for pure city use the 65 HP is the more practical choice.
K9K 712/714 - 68 HP (50 kW): The Campus version with a mild revision, produced from 2006 to 2012. Electronics are improved over the earlier K9K, so there are fewer ECU failures than with the K9K 700. However, injectors and corrosion remain identical problems. This is the youngest generation of Clio 2 with a dCi engine and the most common choice for buyers looking for a newer example with lower mileage.
Reliability and reputation in BiH
The Clio 2 1.5 dCi has proven on BiH roads that the K9K engine can be durable when properly maintained. However, most examples on the market today have more than 200,000 km and are over 15 years old, meaning electrical and bodywork problems are nearly unavoidable. Parts are cheap and widely available, both OEM and aftermarket. Compared to competitors of the same class and age (Peugeot 206 1.4 HDi, Opel Corsa C 1.3 CDTI), the Clio 2 sits at roughly the same reliability level, with an advantage in engine simplicity and a disadvantage in body corrosion protection. The K9K engine principle is similar to what you find in other small dCi units, but the specific implementation, software, injectors and typical faults differ from manufacturer to manufacturer. The typical buyer is someone looking for cheap city transport who is willing to invest in basic upkeep. For that purpose, the Clio 2 still meets expectations, provided you do not neglect the key service intervals.
Common faults we see
From our workshop experience, here is what comes in most often for this model.
1. ECU failure (DCM1.2)
Symptom: The car will not start at all, diagnostics cannot communicate with the engine computer, the immobiliser light stays on permanently, the radiator fan runs as soon as the ignition is turned on.
The Delphi DCM1.2 engine management unit on early K9K engines (2002-2008) is prone to total failure. The cause is usually moisture or thermal ageing of components on the circuit board. The problem is well known and affects the Clio 2 as well as the Kangoo, Megane and Scenic with the same engine. On older examples with over 200,000 km, this is one of the most serious faults.
Advice: If the car suddenly will not start and diagnostics cannot see the ECU, it is almost certainly the management unit. We recommend ECU refurbishment by a trusted specialist, since a new one is expensive and second-hand units carry the risk of the same failure.
2. Delphi injectors
Symptom: Hard cold starting, rough idle, black smoke under acceleration, knocking from the cylinder head.
Early K9K engines (K9K 700, K9K 702, K9K 704) use Delphi common-rail injectors that are sensitive to fuel quality. Poor fuel, water in the system, or irregular fuel filter changes accelerate wear. The copper sealing washers lose their seal and allow combustion gases through, which further damages the seat in the cylinder head. On a Clio 2 with 150,000+ km, this is one of the most common reasons for a workshop visit.
Advice: Change the copper washers and fuel filter on schedule. We measure the return flow on each injector - if it is excessive, the injector goes for reconditioning or replacement. Catching the problem early is significantly cheaper.
3. Clutch and flywheel
Symptom: Juddering when pulling away, difficulty changing gears, vibrations at idle, slipping under load.
The Clio 2 1.5 dCi uses a dual-mass flywheel on most variants. Given the age of these vehicles and average mileage (200,000-300,000 km), the clutch and flywheel are often at the end of their life. City driving accelerates wear in particular. Many examples in BiH are already on their second or third clutch.
Advice: When replacing the clutch, always replace the dual-mass flywheel too if it is borderline. The labour is the same, and you only pay for it once. We recommend a quality kit (LuK, Sachs or Valeo).
4. Body corrosion
Symptom: Rust around the wheel arches, sills, around the spare wheel well, and on door edges. The underbody is visibly corroding.
The Clio 2 is known for weak factory corrosion protection, especially Phase 1 and Phase 2 examples (up to 2003). On BiH roads with winter salting, the sills and underbody suffer first. Examples older than 15 years almost always have at least early signs of corrosion at the critical points. This article focuses on the hatchback Clio 2, not the sedan variant (Symbol/Thalia) which has partially different body issues.
Advice: When buying, always inspect the sills from inside and the underbody. Surface rust on the wheel arches is cosmetic, but structural sill corrosion is a reason to walk away.
5. Electric window regulators
Symptom: The window rises slowly or does not move at all, you hear a relay click but the motor does not respond, the glass drops inside the door.
The window regulator mechanism on the Clio 2 uses plastic guides that crack with age and heat. The regulator motor also fails, especially on the driver's door which gets the most use. This is so common that it is considered almost routine maintenance on older examples.
Advice: The repair is relatively straightforward - replacing the regulator mechanism. Do not buy the cheapest aftermarket parts, or the same problem will return within a year.
6. Crankshaft and camshaft sensors
Symptom: The car stalls while driving without warning, hard starting after cooling down, intermittent power loss, check engine light.
Crankshaft (CKP) and camshaft (CMP) sensors on the K9K engine in the Clio 2 fail with age. The sensor wiring runs close to hot engine components and the insulation breaks down over time. The problem is insidious because it comes and goes: the car stalls, then starts again after a few minutes, leading owners to postpone a workshop visit.
Advice: With diagnostics we read fault codes P0335 (crankshaft) or P0340 (camshaft). Sensor replacement is simple and inexpensive - it is not worth driving with an intermittent fault that could cause a stall on the road.
7. Turbocharger (fixed geometry)
Symptom: Power loss above 3000 rpm, whistling from the engine bay, black or blue smoke, oil in the intercooler.
The Clio 2 1.5 dCi uses a fixed-geometry turbo (not VGT), which is simpler but still subject to bearing and seal wear. The causes are the usual ones: dirty oil, switching off without letting the turbo cool down, and a blocked oil return to the sump. On examples with 200,000+ km the turbo is often borderline.
Advice: Before replacing the turbo, we always check the oil condition and the return line. A new turbo on an engine with a blocked oil return will fail again. Change the oil at 10,000 km intervals and let the engine idle for 20-30 seconds before switching off.
8. ABS sensors and tone rings
Symptom: ABS activates at low speed for no reason, the ABS warning light stays on, inaccurate speedometer reading.
The ABS tone rings on the Clio 2 corrode and crack, especially on the rear axle. When a ring cracks, the sensor sends a false signal and ABS activates unpredictably. The problem gets worse in winter when salt and moisture accelerate corrosion.
Advice: With diagnostics we read which sensor is reporting a fault. Often it is enough to replace the tone ring on the bearing (it comes as part of the bearing kit) rather than the entire ABS module.
Clio 2 1.5 dCi ECU failure symptoms
Owners often search for what it actually means when a Clio 2 completely stops communicating with the diagnostic tool. With the DCM1.2 unit, the symptoms of failure are distinctive: the immobiliser light stays on constantly (it does not flash as normal), the radiator fan comes on as soon as you turn the key to ignition (because the ECU is not sending the thermostat signal), and the starter turns the engine but there is no injection response at all. If you have the combination of these three symptoms, the probability of an ECU fault is very high. We recommend against buying a second-hand ECU from a breaker's yard without a warranty, because the same failure mode affects the vast majority of DCM1.2 units of that generation.
Service and maintenance
The K9K engine uses a timing belt that should be changed at 90,000-120,000 km or 5 years, depending on the model year and manufacturer recommendation (check the service book). Do not exceed this interval - the engine is an interference design and a snapped belt means a destroyed engine. We recommend 5W-30 oil to RN0700 specification (Renault standard), with a change interval of 10,000-12,000 km instead of the factory 15,000-20,000 km. BiH conditions (city driving, short trips, fuel quality) do not tolerate long-life intervals. Change the fuel filter every 25,000-30,000 km, depending on the fuel quality at the stations you use. Delphi injectors do not forgive dirty fuel. The Clio 2 has no DPF or AdBlue system, which is one advantage of older K9K variants for simplicity of maintenance.
Clio 2 1.5 dCi timing belt interval
The timing belt on the K9K engine is of the interference type, meaning a broken belt causes piston-to-valve contact and effectively destroys the engine. The replacement interval is 90,000-120,000 km or every 5 years (whichever comes first). Always replace the water pump together with the belt, as the water pump is a common cause of belt failure. The full kit (belt, tensioners, water pump) is a standard job we carry out regularly. If you are buying a Clio 2 and do not know when the belt was last changed, treat it as due.
Owner tips
- Change the oil at 10,000-12,000 km with 5W-30 RN0700 specification. The K9K does not tolerate long-life intervals with BiH fuel.
- Check the history before putting down a deposit: use the chassis number to pull the full vehicle history through carVertical. From international registers you get real odometer readings by date, recorded accidents, number of previous owners, and theft or total-loss indicators. We consider this essential before buying any used Clio 2, as older examples frequently have a rolled-back odometer. When paying for the report you can use the code GAGA for a 20% discount.
- Change the fuel filter at 25,000-30,000 km. Delphi injectors are sensitive to water and contaminants in the fuel.
- Timing belt with water pump and tensioners at 90,000-120,000 km or 5 years. Never exceed this interval.
- Before switching off the engine, let it idle for 20-30 seconds so the turbo can cool down, especially after motorway driving.
- Inspect the sills and underbody at least once a year. Preventive corrosion protection is incomparably cheaper than remedial repairs.
Frequently asked questions
Is the Renault Clio 2 1.5 dCi reliable at 250,000 km?
The K9K engine can comfortably exceed 300,000 km if properly maintained. The key is that the belt has been changed on schedule, oil at 10,000-12,000 km, and the fuel filter at 25,000-30,000 km. Most problems at this mileage are electrical in nature and body corrosion, not the engine itself.
Which engine is the better choice in the Clio 2 - 65 HP or 80 HP?
For city driving the 65 HP (K9K 700) is perfectly adequate and slightly simpler to maintain. The 80 HP version (K9K 702) shares the same base but puts more strain on the clutch and turbo. If you do not regularly drive on the motorway, the 65 HP is the more practical choice.
Is it worth fitting LPG to a Clio 2 1.5 dCi?
You cannot fit a conventional LPG system to a diesel engine. The Clio 2 with 1.5 dCi is already economical, averaging 5-6 litres per 100 km. If you want LPG, look for a Clio 2 with the 1.2 16V or 1.4 petrol engine, which are suitable for conversion.
How much does a timing belt change cost on the Clio 2 1.5 dCi?
Replacing the belt with water pump and tensioners is a standard job we carry out regularly. The cost depends on the specific condition - get in touch for a quote. The interval is 90,000-120,000 km or 5 years. Always replace the water pump along with the belt - the labour is the same, and the water pump is a common cause of belt failure.
Why does the Clio 2 1.5 dCi stall while driving?
The most common cause is an intermittent crankshaft sensor (CKP) failure: the car stalls, then starts again after a few minutes. The other possible cause is a DCM1.2 ECU fault, especially on 2002-2005 examples. Diagnostics quickly pinpoint the cause.
Does the Clio 2 1.5 dCi have a DPF?
No. The Clio 2 with the K9K engine was produced before the mandatory DPF era (Euro 4 and earlier standards). This is one advantage of this model for owners who drive short city trips - no problems with DPF clogging as on newer diesels.
What to look out for when buying a Clio 2 1.5 dCi?
Check three things first: the sills and underbody for corrosion (often critical), cold-start behaviour and running (injectors), and whether diagnostics can communicate with the ECU without fault codes. If the car is hard to start cold or stalls intermittently, request a thorough inspection immediately. Do not confuse the hatchback Clio 2 with the sedan variant (Symbol/Thalia) which has partially different body issues.
If you notice any of these symptoms, drop by the workshop - it is better to check early than to pay for an expensive repair.