Opel Combo C
Weaknesses, engine ratings and buying advice
The Opel Combo C (2001–2011) is both workhorse and family hauler — as panel van and high-roof MPV on a Corsa C basis. Ten years of production means huge volumes and cheap parts, but also: every example has serious mileage. The Combo C was predominantly used commercially, and it shows.
Market overview: Still widely available in Germany, often with 150,000–250,000 km on the clock. Prices in 2026 for roadworthy examples (2005–2009, 120,000 km) are 1,500–4,000 EUR. Panel vans without windows are cheaper, Tour variants (5-seater with glazing) cost more. The Combo C is technically simple — anyone who can turn a wrench keeps this car alive on a shoestring.
Engine choice: Petrol Z14XEP (1.4, 66 kW) — frugal and adequate for city use, but timing chain stretches from 120,000 km (800–1,500 EUR). Thermostat tends to stick open or closed (80–200 EUR), throttle body soots up with short trips. Z16XER (1.6, 64 kW) as an alternative is slightly more refined. Diesels are the better choice for the Combo: the old Y17DTL (1.7 DI, 55 kW) is a naturally aspirated diesel without turbo — rough, loud, but virtually indestructible. Problem: the injection pump control unit (EDU) has cold solder joints on its circuit board, engine dies while driving (repair 200–500 EUR at an electronics specialist, new unit up to 1,200 EUR). Glow plugs snap when being removed — soak with penetrating oil first. The Z13DTH (1.3 CDTi, 51 kW) is economical but has timing chain stretch as a known issue plus EGR fouling. The Z17DTH (1.7 CDTi, 74 kW) is the best compromise of power and durability — DPF clogging with short trips to watch for, injectors wear from 150,000 km (200–400 EUR each).
Weak points: The sliding door is both the hallmark and the biggest headache — guide rail rusts, paint flakes, door becomes stiff (100–300 EUR). Central locking fails due to dead actuators or cable breaks at the sliding door. Handbrake does not hold — cables stretch, seize with rust. Heater core blocks up with wrong coolant — heater blows lukewarm despite a warm engine. Easytronic: clutch actuator fails from 70,000 km (600–1,800 EUR) — avoid categorically. Rust under the sill trims, on sills and the sliding door rail. Dashboard and interior trims rattle in cold weather and on bad roads.
Test drive checklist: Open and close the sliding door multiple times (smooth?), cold start Y17DTL/Z17DTH (EDU dropout? Chain rattle?), test handbrake on a slope, check heater function, central locking on all doors individually, torch the underside for rust — especially sills and sliding door rail.
Buying advice: The insider pick is the Z17DTH (1.7 CDTi, 74 kW) with manual 5-speed gearbox — enough power even when loaded, no Easytronic risk. On the Y17DTL, have the EDU control unit checked before purchase. The Tour variant with rear glazing and rear seats is surprisingly practical as a family vehicle. Finding a Combo C with documented chain or belt change and a rust-free sliding door means an honest workhorse for very little money.
100 PS
Combo · Diesel
Combo diesel top
Decent60–80 PS
1.7L DI Diesel
8 weaknesses
Stay Away!Generations
Engine Overview
The Opel Combo C is available with 5 engine variants — from 60 to 131 hp.
90 hp variant of the small Fiat MultiJet diesel (1.3 L), fitted in the Corsa D and Astra H. The timing chain, declared maintenance-free by the manufacturer, is the biggest weakness and can catastrophically fail above 150,000 km — preventive replacement from 120,000 km is recommended. EGR and turbo wastegate are further typical wear points. No swirl flap problem like the larger Z19DTH — the 1.3 has no variable swirl flaps.
- !! Timing chain: stretch and chain failure from 170,000 km
The timing chain, declared maintenance-free, stretches considerably with long oil change intervals. A broken chain means engine damage from valve collision. Total failure documented at 184,000 km.
Symptoms: Rattling on cold start from the timing chain area, easing slightly as it warms up. Sudden engine failure with heavy smoke in total failure cases. - !! Turbo wastegate: seizing and pressure loss from 120,000 km
The wastegate actuator on the IHI turbo seizes in the closed position through heat and ageing, leading to excessive boost pressure and limp mode. Turbo overhaul costs approx. 310 EUR.
Symptoms: Vehicle enters limp mode, severely reduced power, engine warning light, occasional whistling or grinding noises from turbo area. - !! EGR carbon buildup in intake from 120,000 km
The EGR system of the 1.3 CDTi recirculates exhaust gases into the intake tract, where soot deposits form. At high mileage the intake becomes increasingly clogged, causing power loss and increased consumption. Regular cleaning or EGR deactivation are common remedies.
Symptoms: Power loss, increased consumption, black smoke, check engine light
+ 1 more engine weaknesses + vehicle weaknesses
Isuzu-based 1.7-litre common-rail diesel (100 hp) with a solid basic design, fitted in the Astra H, Corsa D and Combo C. Injectors, EGR and the metering unit of the high-pressure fuel pump are the most common cost traps — all three should be closely monitored from 130,000 km onwards. The turbocharger is long-lived on well-maintained examples. Timing belt change at 100,000 km at the latest, together with the water pump.
- !! Injectors worn — high return volume from 120,000 km
Common-rail injectors wear and show increased return volumes. Individual testing by return flow measurement is possible. Faulty injectors are often replaced as a set.
Symptoms: Rough idle, knocking noises on cold start, exhaust smoke, starting problems, engine stalling. - !! Turbocharger bearing failure from 100,000 km
Turbocharger 49131-06007 is a known weak point and can fail through bearing wear or oil starvation. Cases documented from 35,000 km on motorway drivers.
Symptoms: Whistling or humming from turbo area from around 2,000 rpm, limp mode with power loss, engine warning light, blue or white exhaust smoke. - !! EGR valve coked up and sticking from 80,000 km
The EGR valve clogs with soot deposits and sticks open or closed. Particularly common with short-trip use without sufficient engine temperature.
Symptoms: Power loss under load, juddering at mid-range revs, fault code P0400, engine warning light, in the worst case engine stalling.
+ 2 more engine weaknesses + vehicle weaknesses
Isuzu-based 1.7-litre naturally aspirated diesel without turbocharging — the most economical engine in the Astra G and Combo C. The electronic injection pump (VP37) and its control unit (EDU) are the biggest weak point: solder joints crack from engine vibrations, causing sporadic starting problems and misfires. Timing belt must be changed at 100,000 km at the latest. With intact electronics, an economical and long-lived engine.
- !! Injection pump ECU (EDU) faulty from 120,000 km
The EDU suffers from cold solder joints caused by engine vibration. The engine suddenly stops running warm or cuts out under load. Fault code P0251 is typical. Specialist repair is possible; a new pump is very expensive.
Symptoms: Engine cuts out when warm and will not restart; rough idle; engine does not respond to throttle; fault code P0251 - !! Timing belt — engine damage if it breaks from 150,000 km
The Y17DTL is an interference engine. A broken timing belt causes engine damage through valve-to-piston contact. Prescribed replacement intervals are often not adhered to.
Symptoms: Engine suddenly will not start; tearing noise - !! Injection pump ECU (EDU) faulty — engine cuts out from 130,000 km
The control unit integrated into the injection pump head on the Y17DTL typically fails under heat: engine judders, loses power and will not restart when hot. Fault code P0251 is typical. Replacement pumps cost 400–800 EUR.
Symptoms: Engine dies at operating temperature, starts cold but not when warm, juddering and power loss, fault code P0251.
+ 5 more engine weaknesses + vehicle weaknesses
Robust 1.4-litre naturally aspirated engine with timing chain drive and Twinport system. Typical problems include the thermostat (plastic housing cracks), throttle body (electronic, gets contaminated) and oil pressure switch. The timing chain was incorrectly fitted on some early production examples (2003–2004) — check for recall completion. With good maintenance, a long-lived engine that readily exceeds 250,000 km.
- !! Timing chain stretch (recall up to 04/2004) from 60,000 km
Opel issued a product improvement for Z14XEP engines built until April 2004. The chain tensioner was undersized — the chain stretches and can skip. Chain breakage causes engine damage. Improved parts were fitted from May 2005.
Symptoms: Cold-start rattle, rough idle, check engine light - !! Oil pressure switch membrane failure from 80,000 km
The membrane in the Twinport family oil pressure switch (Z14XEP/Z16XEP) fails and gives false oil pressure readings. In the worst case, oil leaks and damages the engine control unit — making it expensive.
Symptoms: Sporadic oil pressure warning light, oil leak at pressure switch, ECU faults - ! Thermostat stuck open or closed from 80,000 km
The thermostat tends to stick, leading to overheating or a permanently cold engine. Common from 80,000 km, coolant temperature gauge fluctuates significantly.
Symptoms: Engine temperature does not reach operating temperature or rises above normal. Heater output deteriorates.
+ 3 more engine weaknesses + vehicle weaknesses
Robust naturally aspirated Ecotec four-cylinder (1.6 L) with timing belt drive and VVT system. The map-controlled thermostat is a known weak point across the entire Z1xXER family — it opens sporadically at the wrong time and causes fluctuating engine temperature. Ignition coils and oil pressure switch are inexpensive service parts. The VVT actuator can start making noises from 100,000 km. With good care, easily exceeds 250,000 km.
- !! Timing belt neglected from 150,000 km
The Z16XER is an interference engine with timing belt drive. Replacement interval 10 years or 150,000 km. If the belt breaks without being replaced, the valve train strikes the pistons — total engine failure.
Symptoms: No direct warning before failure. Indirect sign: belt rattling or squealing. Sudden engine failure with valve damage as a result. - !! Camshaft adjuster failure (INA type) from 100,000 km
The variable valve timing adjuster loses oil pressure due to broken rotor blades and can no longer adjust correctly. Cold-start rattle and fault codes P0011/P0014 are typical symptoms. Opel issued a field service directive. Should be replaced preventively during timing belt service.
Symptoms: Cold-start rattle, check engine light, codes P0011/P0014, rough idle - !! Map-controlled thermostat faulty from 80,000 km
The electronically controlled thermostat fails frequently, remaining permanently in the open or closed position. Only OEM parts provide reliable replacement.
Symptoms: Engine temperature permanently too low (around 73 °C instead of 91–96 °C), heater barely produces warmth, increased fuel consumption, fault code P2182.
+ 3 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| Rust under entry strips Rubber entry strips collect water; the metal band abrades the paint. Corrosion on the door sills is only visible after the strips are removed. Symptoms: Blistering under entry strips, visible rust on the sill. from 80,000 km | Low | |
| Corrosion at wheel arches and underbody Deep corrosion forms at the front and rear wheel arches and underbody during winter use. Symptoms: Rust blisters at inner wheel arch edges, flaking when tapping the underbody. from 100,000 km | Medium |
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Known Problems and Issues +
A total of 42 weaknesses have been documented for the Opel Combo C (2002–2011) — 29 engine-related and 13 vehicle-related. One problem engine: Y17DTL (1.7L DI). Typical issues affect Rust, Body, Suspension, Brakes.
Combo (Y17DTL, 2002–2011) — Stay Away!: Injection pump ECU (EDU) faulty, Timing belt — engine damage if it breaks, Injection pump ECU (EDU) faulty — engine cuts out. Power: 75 PS.
Combo (Z13DTH, 2003–2011) — Be Careful: Timing chain: stretch and chain failure, Turbo wastegate: seizing and pressure loss, EGR carbon buildup in intake. Power: 69–75 PS.
Combo (Z17DTH, 2003–2011) — Be Careful: Injectors worn — high return volume, Turbocharger bearing failure, EGR valve coked up and sticking. Power: 101 PS.
Combo (Z16XER, 2002–2011) — Be Careful: Timing belt neglected, Camshaft adjuster failure (INA type), Map-controlled thermostat faulty. Power: 87 PS.
Combo (Z14XEP, 2003–2011) — Be Careful: Timing chain stretch (recall up to 04/2004), Oil pressure switch membrane failure, Thermostat stuck open or closed. Power: 90–95 PS.
What to watch out for with the Opel Combo? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
What problems and weaknesses does the Opel Combo C have? +
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Last updated: February 2026 · All information without guarantee