Lancia delta 844
Weaknesses, engine ratings and buying advice
190 PS
Delta · Diesel
Biturbo king
Fun to Drive!150 PS
1.4L T-Jet Benzin
3 weaknesses
Good ChoiceEngine Overview
The Lancia delta 844 is available with 7 engine variants — from 105 to 200 hp. 2 variants had engine changes — the model year is crucial.
Fiat diesel with 115 hp and timing belt drive. Economical and adequately powerful for the compact class. Watch timing belt, DPF and EGR valve.
- !! DPF blockage from short-trip driving from 80,000 km
The DPF on the 1.6 MultiJet clogs in short-trip use. Regeneration temperature is often not reached on trips under 20 km, causing soot accumulation.
Symptoms: Check engine light, power loss, fuel dilution into oil, elevated oil level - !! Injector wear at high mileage from 150,000 km
The common rail injectors on the 1.6 MultiJet wear out from 150,000 km. Leaking injectors cause rough running and higher fuel consumption. Recoding required on replacement.
Symptoms: Rough idle, increased fuel consumption, exhaust smoke, difficult warm starts - ! EGR valve soot deposits from 80,000 km
The EGR valve on the 1.6 MultiJet 955A4000 sticks due to soot deposits and causes fault codes and power loss. Cleaning every 60,000 km is essential for city use.
Symptoms: Fault code P0401, hesitation at partial load, power loss, rough idle at low revs
Best-selling diesel in the Delta III with a good power-to-consumption ratio. Timing belt every 120,000 km, DPF regeneration problematic with short-trip use.
- !! Injector wear and leakage from 150,000 km
The high-pressure injectors on the 2.0 MultiJet 198A2000 can leak and cause rough running. Individual injector replacement around €250; recoding always required.
Symptoms: Hesitation, increased fuel consumption, black exhaust smoke, rough running, difficult warm starts - !! DPF blockage from 80,000 km
The DPF on the 2.0 MultiJet clogs during frequent city use and short trips. Regeneration requires motorway driving; without it, soot accumulates until blockage.
Symptoms: Check engine light, power loss, elevated oil level, limp mode - ! EGR valve carbon deposits from 80,000 km
The EGR valve on the 2.0 MultiJet clogs with carbon. Cleaning every 60,000–80,000 km recommended. Engine tuning shops frequently offer EGR delete options.
Symptoms: Hesitation, EGR fault code, rough idle, increased emissions
Slightly detuned MultiJet variant with Euro 5 standard. Dependable everyday diesel, same service points as the 115 hp version.
- !! DPF blockage from short-trip driving from 80,000 km
The DPF on the Delta 844 1.6 MultiJet blocks during frequent short trips as regeneration fails to occur without sufficient temperature. Typical for city use of the Lancia Delta.
Symptoms: DPF warning light, power loss, oil level rise from fuel dilution, limp mode - ! EGR valve seized with carbon from 80,000 km
Typical issue with the 1.6 MultiJet Lancia Delta: the EGR valve seizes due to carbon deposits and triggers fault codes. The problem occurs earlier in city use.
Symptoms: Hesitation at mid-range load, fault code P0401, power loss, rough idle - ! Boost control valve faulty from 100,000 km
The boost control valve (bypass valve) of the 1.6 MultiJet Delta can wear out or stick. Low boost pressure results in noticeable power loss.
Symptoms: Significant power drop, poor throttle response, engine hesitation under load
Biturbo diesel with 190 hp — most powerful diesel unit in the Delta. Two sequential turbochargers for a broad torque band. Complex boost system increases repair risk and cost.
- !! High-pressure pump wear from 180,000 km
The common rail high-pressure pump on the 2.0 MultiJet 844A1000 can develop pressure loss at higher mileage due to wear. Contaminated fuel significantly accelerates failure.
Symptoms: Starting difficulties, power loss, increased fuel consumption, rough running - !! DPF regeneration failure from 80,000 km
The DPF clogs in short-trip use as the 2.0 MultiJet does not get sufficient motorway runs to regenerate. Particularly critical in city use.
Symptoms: DPF warning light, power loss, rising oil level, limp mode when severely blocked - ! EGR valve soot fouling from 80,000 km
Typical large-diesel issue on the 2.0 MultiJet: the EGR valve sticks and needs regular cleaning. Short-trip driving promotes deposits heavily.
Symptoms: Hesitation, fault codes, power loss at partial load, rough idle
Powerful Fiat 2.0 MultiJet 16V with common rail direct injection and turbocharger. High torque, but suffers from typical large-diesel problems: DPF blockage with short-trip use, EGR coking and turbo damage from heat stress.
- !! Turbocharger damage from heat stress from 120,000 km
The turbocharger of the 2.0 MultiJet is exposed to sustained high temperatures due to the close exhaust routing. Turbo damage has occurred after just a few tens of thousands of kilometres, identifiable by whistling and power loss.
Symptoms: Whistling or howling under load changes, power loss at higher revs, blue exhaust clouds. - !! Premature water pump failure from 100,000 km
Premature water pump failures have been documented on several Delta 844 examples with the 2.0 MultiJet. The repair requires extensive disassembly. At the same time, plastic intake tract components can become brittle.
Symptoms: Rising coolant temperature, coolant loss without visible leakage, squealing noise from the engine bay, overheating warning. - !! DPF blockage with short-trip driving from 100,000 km
The diesel particulate filter cannot regenerate itself when predominantly used in city or short-trip conditions. Soot accumulation leads to increased fuel consumption, power reduction and limp mode.
Symptoms: DPF warning light, noticeably increased fuel consumption, power loss especially from mid-range revs, limp mode when fully blocked.
+ 1 more engine weaknesses + vehicle weaknesses
MultiAir valve actuation with electrohydraulic control. Efficient and torquey, but the MultiAir unit is maintenance-intensive. Observe oil quality and change intervals meticulously.
- !! Intake port carbon build-up from oil mist from 80,000 km
The MultiAir technology is sensitive to deposits in the intake port. Oil mist from crankcase ventilation deposits as carbon and impairs valve actuation.
Symptoms: Power loss, rough running, engine warning light, rough cold start - !! Thermostat failure from 100,000 km
The thermostat of the 198A7000 can stick open or closed. If it sticks closed, engine overheating with severe consequential damage is imminent.
Symptoms: Engine runs too hot (sticks closed) or warms up too slowly (sticks open), higher consumption - ! Oil separator faulty from 80,000 km
The oil separator in the crankcase ventilation of the MultiAir engine wears and allows oil to enter the intake tract. Oil reaches the turbo and can cause bearing failure there.
Symptoms: Elevated oil consumption, blue exhaust, oil in the air filter housing, turbo whistling
Powerful 1.4L turbopetrol with timing belt (change at 120,000 km, approx. 360–590 €). Rated as robust compared to other turbo engines when oil changes and turbo cool-down are observed. Crankcase ventilation and oil consumption through valve stem seals are the typical wear points.
- !! Timing belt change frequently neglected from 120,000 km
Mandatory timing belt change at 120,000 km costs 360–590 € (including water pump). Missing this risks engine damage. The engine mount must be removed for the belt change — complex and error-prone.
Symptoms: No warning when correctly maintained. Missed change leads to sudden engine failure or engine damage - !! Turbocharger damage from oil coking from 180,000 km
Turbocharger damage at high mileage (220,000+ km) or after short-trip operation due to oil coking in the fine oil passages. Classic cause: engine switched off immediately after hard driving without a cool-down phase.
Symptoms: Power loss, whistling from the turbo, limp mode above 3,500 rpm, blue exhaust smoke - ! Oil consumption due to valve stem seals from 100,000 km
Cases of 1 litre oil consumption per 2,000 km documented (at 89,000 km). The cause is usually a faulty crankcase ventilation or worn valve stem seals. Dealer workaround of switching to 10W40 does not fix the root cause.
Symptoms: Blue smoke trail especially in the first kilometres after cold start, no visible external oil leak, oil level drops noticeably between services
+ 1 more engine weaknesses + vehicle weaknesses
More powerful T-Jet variant with 150 hp from just 1.4 litres. Sporty, but higher stress on turbo and clutch. Regular oil changes with high-quality oil are important.
- !! Water pump wear from 120,000 km
The water pump on the 198A1000 is timing belt-driven and must always be replaced during a belt change. Water pump failure can lead to overheating damage.
Symptoms: Coolant loss, rising temperature, water pump squealing, coolant smell - ! Intake valve carbon build-up from 80,000 km
The 1.4 T-Jet 198A1000 uses direct injection, meaning the intake valves are not washed by fuel and accumulate carbon deposits. Build-up reduces charge filling and thus power.
Symptoms: Power loss, rough running especially when cold, misfires at low revs - ! Oil separator faulty, increased oil consumption from 90,000 km
The oil separator (crankcase ventilation) on the 198A1000 develops leaks or clogs over time. Oil enters the intake tract and causes increased oil consumption and engine contamination.
Symptoms: Increased oil consumption, oil mist in air filter housing, check engine light, boost pressure issues
LPG variant of the 1.4 T-Jet. Bivalent turbo operation with low fuel costs. Watch valve seat wear and the turbo in continuous LPG operation.
- !! Intake valve carbon build-up in LPG mode from 60,000 km
In LPG mode the fuel wash effect on the intake valves is absent, leading to heavier carbon build-up than on petrol alone. Regular injector cleaning is advisable.
Symptoms: Power loss especially on cold engine, misfires, rough running, poor throttle response - ! LPG injectors worn from 80,000 km
The gas injectors in the LPG system wear and need regular overhaul or replacement. Leaking injectors cause rough running in gas mode.
Symptoms: Reduced performance on gas, rough gas-mode running, increased gas consumption - ! ECU adaptation to LPG disrupted from 80,000 km
The engine management must relearn between petrol and LPG operation. Incorrect adaptations can cause idle problems and fault code entries, especially after workshop visits.
Symptoms: Check engine light after filling, rough petrol-to-gas transition, misfire fault code
Direct-injection turbo with 200 hp, also known from Alfa Romeo. Powerful engine with a sporty character. Timing chain instead of belt, but check turbo and high-pressure pump at high mileage.
- !! Turbo oil supply blocked by filter screen from 60,000 km
The filter screen in the banjo bolt oil feed to the turbocharger can clog and cut the turbo off from its oil supply. Alfa Romeo recommends inspecting this screen at every oil change.
Symptoms: Sudden power loss, turbo whistling, pressure drop at high load, in the worst case total turbo failure - !! PCV membrane failed, high oil consumption from 70,000 km
The oil separator on the cam cover sticks or its membrane tears. Oil is drawn directly into the turbo and burned. Repair possible with silicone oil treatment of the membrane, then renew the cam cover gasket.
Symptoms: High oil consumption (up to 1 litre per 1,000 km), smoke from exhaust, oil in turbo intake area - !! Clutch overloaded at high torque from 80,000 km
The standard clutch in the 939B1000 is at its limit with higher torque. Sporty driving or light tuning quickly leads to clutch slip and wear.
Symptoms: Clutch slip under high load, poor engagement, clutch smell
+ 2 more engine weaknesses + vehicle weaknesses
Vehicle Weaknesses
| Weakness | Cost | |
|---|---|---|
| M32 gearbox bearing damage The M32 gearbox (GM/Opel) is known for weak bearings on the 6th gear shaft. Howling and whistling from around 80,000 km; gearbox rebuild or bearing replacement required. Symptoms: Howling noise in 5th and 6th gear, gets louder over time, gear may jump out from 90,000 km | Medium |
Alternatives
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Known Problems and Issues +
A total of 43 weaknesses have been documented for the Lancia delta 844 (2008–2014) — 34 engine-related and 9 vehicle-related. Typical issues affect Gearbox, Steering, HVAC, Cooling. Considered reliable: 198A4000 (1.4L T-Jet), 198A4000-LPG (1.4L T-Jet LPG), 198A1000 (1.4L T-Jet).
Delta (955A4000, 2008–2011) — Be Careful: DPF blockage from short-trip driving, Injector wear at high mileage, EGR valve soot deposits. Power: 116–120 PS.
Delta (198A5000, 2008–2014) — Be Careful: Turbocharger damage from heat stress, Premature water pump failure, DPF blockage with short-trip driving. Power: 163–165 PS.
What to watch out for with the Lancia delta? See the detailed listing of all engine and vehicle weaknesses in the sections above.
Frequently Asked Questions
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Last updated: February 2026 · All information without guarantee