What weaknesses does the Dacia Logan 3 have?

The Dacia Logan 3 has 52 known engine weaknesses and 6 vehicle weaknesses. Repair costs range from 21,480 to 50,350 EUR.

Dacia · Compact · 2020–2026

Dacia Logan 3

Name: Dacia Logan 3
Brand: Dacia
Rating: 3.1 (11 reviews)

Weaknesses, engine ratings and buying advice

★★★★★

3.2 / 5.0 · Based on 11 engine variants · How we rate

The Dacia Logan III (from 2020) is the cheapest new car in Europe — and that's its entire concept. Built on the CMF-B platform (like Clio V), with a single engine family and a price tag the competition can't match.

The engines: All Logan IIIs run the H4D 1.0 three-cylinder in various tunes. The naturally aspirated H4D-49kW (SCe 65) is the absolute base — enough for the city but sluggish on country roads. The turbo variants H4D-67kW (TCe 90) and H4D-74kW (TCe 100) are the all-rounders. Important: the TCe has no hydraulic tappets — valve clearance must be manually adjusted every 60,000 km. Skip it and you risk power loss and starting problems. Monitor timing chain from 120,000 km, failure = engine damage (interference engine).

The LPG unique selling point: The H4D-67kW-LPG">H4D-67kW-LPG and H4D-74kW-LPG (Eco-G) come factory-fitted with autogas — not an aftermarket kit but standard equipment. This cuts fuel costs significantly. Occasional judder when switching between petrol and gas is known but harmless.

Whole car: Thinner paint than competitors — stone chips arrive early. Poor noise insulation on the motorway. CVT automatic (X-Tronic) can develop shudder at higher mileage. Front axle noises on rough roads. All known and documented issues — but acceptable at this price point.

Test-drive checklist: TCe: does the engine idle smoothly (valve clearance)? LPG: switching petrol/gas without heavy judder? CVT: shudder when accelerating? Paint: stone chips on the front end?

Market 2026: New from $14,000 (SCe 65), used (2021–2022, 40,000 km) from $10,000. Insider pick: TCe 90 Eco-G (LPG) with manual gearbox for under $13,000 — the most economical total package on the market. No prestige, but the maths works out.

Most Fun Engine

101 PS

Logan · LPG

Punchy gas-saver

Decent

Most Reliable Engine

67–73 PS

1.0L NA Benzin

2 weaknesses

Good Choice

Generations

Engine Overview

The Dacia Logan 3 is available with 3 engine variants — from 66 to 101 hp. 1 variants had engine changes — the model year is crucial.

1.0L NA · Petrol· 66–73 PS

2021 2026

Naturally aspirated 1.0-litre three-cylinder without turbo — maximum simplicity with low maintenance requirements. No hydraulic tappets, so have valve clearance checked every 100,000 km. Timing chain can wear prematurely with excessively long oil change intervals; pay particular attention to the cooling system on this aluminium engine.

!! Timing chain stretch on TCe variants from 140,000 km

Timing chain can stretch on the turbocharged variants (TCe) after 120,000–160,000 km. Cold-start rattling is an early warning sign.

Symptoms: Timing chain can stretch on TCe variants after 120,000 km

500–1,000 $

Ad timing chain kit H4D Dacia 1.0 TCe timing chain Dacia Sandero 1.0 TCe 90
!! Oil in spark plug tubes from 90,000 km

Valve cover gasket leaks in the spark plug tube area. Same issue as the H4B three-cylinder.

Symptoms: Valve cover gasket leaks in the spark plug tube area

100–250 $

Ad valve cover gasket H4D Dacia 1.0 spark plugsschacht gasket Dacia 1.0 TCe
!! CVT gearbox judder from 90,000 km

CVT gearbox (X-Tronic) judders at constant speed. A software update may help; otherwise the variator belt is worn.

Symptoms: CVT gearbox (X-Tronic) judders at constant speed

200–800 $

Ad CVT transmission fluid Dacia Sandero X-Tronic CVT gearbox Renault Xtronic Dacia

1.0L Turbo · Petrol· 91 PS

2021 2026

Turbocharged 1.0-litre three-cylinder with moderate output for everyday use. No hydraulic tappets — have valve clearance checked every 100,000 km. Timing chain can suffer from excessively long oil change intervals; short oil change intervals and a sound cooling system are important.

!! Timing chain stretch on TCe variants from 140,000 km

Timing chain can stretch on the turbocharged variants (TCe) after 120,000–160,000 km. Cold-start rattling is an early warning sign.

Symptoms: Timing chain can stretch on TCe variants after 120,000 km

500–1,000 $

Ad timing chain Dacia Sandero 1.0 TCe 67kW timing chain H4D 90PS Renault chain tensioner 1.0 TCe 90PS Dacia
!! Oil in spark plug tubes from 90,000 km

Valve cover gasket leaks in the spark plug tube area. Same issue as the H4B three-cylinder.

Symptoms: Valve cover gasket leaks in the spark plug tube area

100–250 $

Ad spark plugsrohr gasket Dacia 1.0 TCe 67kW spark plug tube gasket H4D 90PS valve cover gasket 1.0 TCe Sandero
!! CVT gearbox judder from 90,000 km

CVT gearbox (X-Tronic) judders at constant speed. A software update may help; otherwise the variator belt is worn.

Symptoms: CVT gearbox (X-Tronic) judders at constant speed

200–800 $

Ad CVT gearbox Dacia Sandero 1.0 TCe 90PS CVT transmission fluid 1.0 TCe 90PS Dacia CVT Wandler Dacia 67kW

1.0L Turbo · LPG· 91–101 PS Engine Change

2020 2026

More powerful turbo version of the 1.0-litre three-cylinder in LPG operation. No hydraulic tappets — have valve clearance checked every 100,000 km. LPG variant with factory-fitted LPG system; observe 10-year tank re-certification. Keep an eye on the cooling system with a turbocharged engine.

!! Timing chain stretch on TCe variants from 140,000 km

Timing chain can stretch on the turbocharged variants (TCe) after 120,000–160,000 km. Cold-start rattling is an early warning sign.

Symptoms: Timing chain can stretch on TCe variants after 120,000 km

500–1,000 $

Ad timing chain Dacia Duster 1.0 TCe LPG timing chain H4D LPG 74kW chain tensioner 1.0 TCe LPG 100PS
!! Oil in spark plug tubes from 90,000 km

Valve cover gasket leaks in the spark plug tube area. Same issue as the H4B three-cylinder.

Symptoms: Valve cover gasket leaks in the spark plug tube area

100–250 $

Ad spark plugsrohr gasket Dacia Duster 1.0 TCe LPG spark plug tube gasket H4D LPG 74kW valve cover gasket Duster 1.0 TCe LPG
!! CVT gearbox judder from 90,000 km

CVT gearbox (X-Tronic) judders at constant speed. A software update may help; otherwise the variator belt is worn.

Symptoms: CVT gearbox (X-Tronic) judders at constant speed

200–800 $

Ad CVT gearbox Dacia Duster 1.0 TCe LPG CVT transmission fluid Duster 1.0 TCe LPG CVT Wandler Dacia 74kW LPG

+ 4 more engine weaknesses + vehicle weaknesses

2021 2026

Turbocharged 1.0-litre three-cylinder in LPG operation. No hydraulic tappets — have valve clearance checked every 100,000 km. LPG variant with factory-fitted LPG system; observe 10-year tank re-certification and check injectors regularly. Pay particular attention to the cooling system.

!! Timing chain stretch on TCe variants from 140,000 km

Timing chain can stretch on the turbocharged variants (TCe) after 120,000–160,000 km. Cold-start rattling is an early warning sign.

Symptoms: Timing chain can stretch on TCe variants after 120,000 km

500–1,000 $

Ad timing chain Dacia 1.0 TCe 90PS LPG timing chain H4D LPG 67kW chain tensioner 1.0 TCe LPG Dacia
!! Oil in spark plug tubes from 90,000 km

Valve cover gasket leaks in the spark plug tube area. Same issue as the H4B three-cylinder.

Symptoms: Valve cover gasket leaks in the spark plug tube area

100–250 $

Ad spark plugsrohr gasket Dacia 1.0 TCe LPG spark plug tube gasket H4D LPG valve cover gasket 1.0 TCe LPG Dacia
!! CVT gearbox judder from 90,000 km

CVT gearbox (X-Tronic) judders at constant speed. A software update may help; otherwise the variator belt is worn.

Symptoms: CVT gearbox (X-Tronic) judders at constant speed

200–800 $

Ad CVT gearbox Dacia 1.0 TCe LPG CVT transmission fluid 1.0 TCe LPG Dacia CVT Wandler Dacia 67kW LPG

+ 4 more engine weaknesses + vehicle weaknesses

Vehicle Weaknesses

	Weakness	Cost
●	Indicator doesn't self-cancel after overtaking The indicator stalk does not reliably cancel after turning in, especially when overtaking. A software update or replacement of the unit can help. Symptoms: Indicator stays on after lane change or overtaking manoeuvre; manual cancellation required from 20,000 km Ad Lenkstockhebel Dacia Logan III turn signalschalter CMF-B	Low
●	Intermittent injection warning Some vehicles occasionally show an 'Check injection' warning without a permanent fault. Often a software or sensor issue identifiable by diagnostic scan. Symptoms: Engine warning light and 'Check injection' message, often disappears on its own from 25,000 km Ad fuel injector Dacia 1.0 TCe oxygen sensor Logan III	Low

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Known Problems and Issues +

A total of 58 weaknesses have been documented for the Dacia Logan 3 (2020–2026) — 52 engine-related and 6 vehicle-related. Typical issues affect Electronics, Gearbox, Interior, Body. Considered reliable: B4D (1.0L NA).

Logan (K9K-55kW, 2012–2021) — Be Careful: Injectors worn out, Turbocharger worn, Connecting rod bearing damage from oil neglect. Power: 68–75 PS.

Logan (K9K-66kW, 2012–2021) — Be Careful: Injectors worn out, Turbocharger worn, Connecting rod bearing damage from oil neglect. Power: 86–95 PS.

Logan (K9K-70kW, 2018–2021) — Be Careful: Injectors worn out, Turbocharger worn, Connecting rod bearing damage from oil neglect. Power: 90–95 PS.

Logan (H4B, 2012–2021) — Be Careful: Timing chain stretch, Oil in spark plug tubes, Elevated oil consumption. Power: 90 PS.

Logan (D4F-54kW, 2015–2021) — Be Careful: Recall: faulty valve cotters, Timing belt every 90,000 km, Oil in spark plug tubes. Power: 73–75 PS.

Logan (H4D-49kW, 2021–2026) — Be Careful: Timing chain stretch on TCe variants, Oil in spark plug tubes, CVT gearbox judder. Power: 66–73 PS.

Logan (H4D-67kW, 2021–2026) — Be Careful: Timing chain stretch on TCe variants, Oil in spark plug tubes, CVT gearbox judder. Power: 91 PS.

Logan (H4B-LPG, 2015–2021) — Be Careful: Timing chain stretch, Oil in spark plug tubes, Elevated oil consumption. Power: 90 PS.

Logan (H4D-74kW-LPG, 2020–2026) — Be Careful: Timing chain stretch on TCe variants, Oil in spark plug tubes, CVT gearbox judder. Power: 101 PS.

Logan (H4D-67kW-LPG, 2021–2026) — Be Careful: Timing chain stretch on TCe variants, Oil in spark plug tubes, CVT gearbox judder. Power: 91 PS.

What to watch out for with the Dacia Logan? See the detailed listing of all engine and vehicle weaknesses in the sections above.

Frequently Asked Questions

What problems and weaknesses does the Dacia Logan 3 have? +

The Dacia Logan 3 has 52 known engine weaknesses and 6 vehicle weaknesses.

What should I look for when buying a used Dacia Logan 3? +

faq.watch_a_solid

Which engine is recommended? +

Good choice: B4D (1.0L NA). The most reliable engine is the B4D (1.0L NA) with the lowest risk score. The most fun to drive is the H4D-74kW-LPG (1.0L Turbo).

Which Dacia Logan 3 engine is the most reliable? +

The {code} ({displacement}) is the most reliable engine in the Dacia Logan 3. It has the lowest risk score of all available engines and is rated "Good Choice". However, there are 2 known weaknesses to be aware of.

Which Dacia Logan 3 engine is the most fun? +

The {code} ({displacement}) offers the most driving fun in the Dacia Logan 3 — rated: "Decent". {description} 100 hp with LPG — the ECO-G 100 in the Logan offers a good mix of performance and low running costs.

Is the Dacia Logan 3 worth buying used? +

The Dacia Logan 3 is a good choice as a used car — 1 of 11 engine variants are rated 'Good Choice'.

What horsepower variants are available for the Dacia Logan 3? +

The Dacia Logan 3 is available with engine variants from 66 to 101 hp. Petrol: D4F-54kW (1.2L 16V), H4B (0.9L Turbo), B4D (1.0L NA), H4D-49kW (1.0L NA), H4D-67kW (1.0L Turbo). Diesel: K9K-55kW (1.5L dCi), K9K-66kW (1.5L dCi), K9K-70kW (1.5L Blue dCi).

Last updated: February 2026 · All information without guarantee