Dacia Engine Codes Database

A Dacia engine code (e.g., K9K, H4M, F4R) identifies the engine family, fuel type, and displacement. K-series = diesel (K9K 1.5 dCi), H-series = petrol (H4M 1.6 16V), F-series = older petrol (F4R 2.0). These are Renault-Nissan alliance engines. Source: Dacia Service Manual

Yes, the K9K 1.5 Blue dCi diesel engine is still used in Dacia Duster and Logan models (2024). However, production is declining as Dacia focuses on LPG and petrol TCe engines for Euro 6d compliance. Source: EU Regulation (EC) No 715/2007

The K9K 1.5 dCi diesel is widely regarded as Dacia's most reliable engine, with many exceeding 200,000 miles. The H4M 1.6 16V petrol is also very reliable. Avoid early TCe 90 engines (2012-2015) due to timing chain issues.

Most Dacia engines use timing belts. K9K diesel: belt replacement every 60,000 miles. H4M petrol: belt at 60,000 miles. TCe engines: some use chains (TCe 90 has chain issues). Always check your specific engine code. All are interference engines.

Yes, the K9K 1.5 dCi is very reliable with proper maintenance. Common issues include EGR valve clogging (urban use), DPF regeneration problems, and injector wear after 150,000+ miles. Timing belt must be changed every 60,000 miles.

On the K9K diesel, the code is stamped on the timing cover. On H4M petrol, check the valve cover label. Also verify in the V5C logbook under 'Engine Number'.

On the UK V5C registration document, look for the 'Engine Number' field (not VIN). This shows the engine code (e.g., K9K734). If the engine was replaced, this may not reflect the current unit.

TCe (Turbo Control efficiency) = turbocharged petrol engines (TCe 90, TCe 100, TCe 130). SCe (Smart Control efficiency) = naturally aspirated petrol engines (SCe 75). TCe offers more power; SCe is simpler and cheaper to maintain.

Yes, many Dacia models come with factory-fitted LPG systems (bivalent). The H4M 1.6 16V and TCe 100 engines are LPG-compatible from factory. LPG reduces fuel costs by ~40% but requires more frequent servicing.

Yes. The engine code (e.g., K9K734, H4M410) is required for ordering correct parts (injectors, turbo, timing kit). Using VIN alone can lead to errors as Dacia uses multiple Renault-Nissan engine variants.

Minimal impact for Dacia engines as they are standard, low-performance units. Diesel K9K may have slightly higher premiums than petrol H4M. Always declare correct engine code and fuel type.

The K9K 1.5 dCi can exceed 250,000 miles with proper maintenance. Key service items: timing belt every 60k miles, oil changes every 12k miles, EGR cleaning, DPF regeneration. Turbo typically lasts 150k+ miles.

Yes. All modern Dacia engines (K9K, H4M, TCe) are interference engines. If the timing belt/chain fails, internal damage is likely. Immediate towing required. Never exceed timing belt replacement intervals.

Early TCe 90 (2012-2015) had timing chain tensioner issues causing rattling and potential failure. Later TCe 100 and TCe 130 improved reliability. K9K diesel and H4M petrol use belts, not chains.

Yes, but must be declared to DVLA. Changing engine code (e.g., petrol to diesel) affects MoT emissions testing, insurance, and V5C registration. Engine swap must meet Euro emissions standard for vehicle age. Source: DVLA guidelines

Yes. Dacia uses Renault-Nissan alliance engines. K9K, H4M, F4R, and TCe engines are identical to Renault equivalents. Parts are interchangeable and widely available through Renault dealers and independent suppliers.

Positions 4-7 of the VIN indicate engine type. Example: UU1HS8... → 'HS8' = K9K 1.5 dCi. Use a Dacia-specific VIN decoder or check Renault-Nissan VIN decoding charts.

K9K diesel: 5W30 or 5W40 ACEA B4 (synthetic). H4M petrol: 5W30 or 5W40 ACEA A3/B4. TCe engines: 5W30 fully synthetic ACEA A5/B5. Change interval: 12,000 miles or annually.

Early K9K (pre-2010) simpler without DPF/EGR complexity but less efficient. Modern Blue dCi (2015+) more refined, Euro 6 compliant, but more complex. H4M petrol consistently reliable across generations.

Use Renault-Nissan Technical Documentation (Renault Service Database) or Dacia Service Information. Public data also in EU type-approval documents and VCA database.