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Dacia · Compact · 2020–2026 Custom Search

Dacia Logan 3

Weaknesses, engine ratings and buying advice

3.2 / 5.0 · Based on 11 engine variants
Most Fun Engine

101 PS

1.0L Turbo 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
Be Careful 3 weaknesses
1.0L Turbo · Petrol· 91 PS
2021 2026
Be Careful 3 weaknesses
1.0L Turbo · LPG· 91–101 PS Engine Change
2020 2026
Be Careful 7 weaknesses
2021 2026
Be Careful 7 weaknesses

The Dacia 1.0L NA (Petrol, 66–73 PS) has the H4D-49kW (1.0L NA) — rated: "Be Careful", 3 known weaknesses.

The Dacia 1.0L Turbo (Petrol, 91 PS) has the H4D-67kW (1.0L Turbo) — rated: "Be Careful", 3 known weaknesses.

The Dacia 1.0L Turbo (LPG, 91–101 PS) comes with 2 different engines: H4D-74kW-LPG (2020–2026, Be Careful) and H4D-67kW-LPG (2021–2026, Be Careful). Pay attention to the model year for the 1.0L Turbo!

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Vehicle Weaknesses

WeaknessCost
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
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
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