The Renault K7M 1.6-liter 8-valve engine was first introduced back in 1995. It was first produced in Spain, until 2004 when it was moved to Romania, where it became the main engine of the budget models Dacia Logan, Sandero, Stepway or Loggi.
The K-series range also includes engines: K4J, K7J, K4M and K9K.
Engine specifications for Renault K7M 1.6 l
Стандартная модификация
| Configuration | Inline |
| Number of cylinders | 4 |
| Number of valves | 8 |
| Displacement | 1598 cc |
| Cylinder diameter | 79.5 mm |
| Stroke | 80.5 mm |
| Power system | Injector |
| Engine power | 82 – 90 hp |
| Torque | 124 – 137 Nm |
| Compression ratio | 9.5 – 9.7 |
| Fuel type | Regular |
| Euro class | EURO 3/4/5 |
Дефорсированная модификация
| Configuration | Inline |
| Number of cylinders | 4 |
| Number of valves | 8 |
| Displacement | 1598 cc |
| Cylinder diameter | 79.5 mm |
| Stroke | 80.5 mm |
| Power system | Injector |
| Engine power | 75 hp |
| Torque | 130 Nm |
| Compression ratio | 9.0 |
| Fuel type | Regular |
| Euro class | EURO 3 |
Вес двигателя К7М по каталогу составляет 127 кг
Описание устройства мотора К7М 1.6 литра 8v
The introduction of the K-series power unit to the first generation Megane in 1995 was a major technological advancement, as it boasted fuel injection engineering and a single ignition coil for 4 cylinders. This powerful engine was officially assembled in Valladolid, Spain and had its engine number, K7M, marked at the junction of the block and gearbox. After production of the 1st Generation Megane came to a close in 2004, this engine was moved to Romania, where it became integral to Dacia’s budget car brand. A few years later saw K7M’s migration further east when Dacia Logan and Sandero were built around this reliable motor.
Fuel consumption К7М
На примере Dacia Logan 2011 года с механической коробкой передач:
| City | 9.9 l |
| Highway | 5.8 l |
| Combined | 7.2 l |
На какие машины ставится силовой агрегат Рено K7M
| Dokker 1 (K67) | 2012 – … |
| Lodgy 1 (J92) | 2012 – … |
| Logan 1 (L90) | 2004 – 2013 |
| Logan 1 MCV (R90) | 2006 – 2013 |
| Sandero 1 (B90) | 2008 – 2012 |
| Sandero 1 Stepway (B90x) | 2009 – 2012 |
| Clio 2 (X65) | 1998 – 2000 |
| Dokker 1 (K67) | 2012 – … |
| Dokker 1 Stepway (K67S) | 2019 – … |
| Logan 1 (L90) | 2005 – 2014 |
| Logan 2 (L52) | 2012 – … |
| Logan 2 Stepway (L52S) | 2018 – … |
| Megane 1 (X64) | 1995 – 1999 |
| Scenic 1 (J64) | 1996 – 2003 |
| Sandero 1 (B90) | 2009 – 2014 |
| Sandero 2 (B52) | 2012 – … |
| Sandero 1 Stepway (B90S) | 2009 – 2014 |
| Sandero 2 Stepway (B52S) | 2014 – … |
Отзывы на двигатель К7М его плюсы и минусы
Достоинства:
- Высокий ресурс вплоть до 500 тысяч км
- Нормально потребляет наш 92-й бензин
- Огромный выбор новых и б/у запчастей
- Легко найти донора на вторичном рынке
Недостатки:
- Несовременный и неэкономичный агрегат
- Мотор очень шумный и вибронагруженный
- Регулярно беспокоит мелкими поломками
- Часто случаются течи масла и антифриза
Регламент обслуживания двс Renault K7M 1.6 8v
| Interval | every 15 000 km |
| Oil capacity | 3.6 l |
| Need to change | 3.3 l |
| Type of oil | 5W-30, 5W-40 |
| Timing Chain Type | Belt |
| Service life | 60 000 km |
| In practice | 100 000 km |
| At breakage/trans-skip | Bending of valves |
| Re-adjustment | every 60 000 km |
| Adjustment principle | при помощи винтов |
| Intake | 0.10 – 0.15 mm |
| Exhaust | 0.25 – 0.30 mm |
| Air filter | 15 000 km |
| Fuel filter | 120 000 km |
| Фильтр в баке | 120 000 km |
| Spark plugs | 30 000 km |
| Вспом. ремень | 90 000 km |
| Антифриз | 5 years or 90 000 km |
Problems & disadvantages of the двигателя К7М
Cracked ignition coil
The most notorious problem with this motor is the cracked ignition coil. Moisture gets trapped in the cracks, which leads to engine thrashing and similar problems. Around 2012, there is a new coil that is free of this flaw.
Timing belt failure
The timing belt drive of this power unit has a replacement schedule of every 60,000 km, but the belt itself can go much longer. It is usually torn due to the wedge of the pump or tensioner roller, and the valves are bent here at breakage in almost 100% of cases.
Floating RPM
The engine rpm at idle is floating quite often and this is usually caused by contamination of idle speed regulator. Clogged injectors or air drainage through cracks or loose intake manifold seals may be another cause.
Oil and antifreeze leaks
The engines of this series are prone to oil and antifreeze leaks, and there are several weak points: the grease often oozes out through the front crankshaft oil seal or from the heat exchanger. The often cracked thermostat body is responsible for coolant leakage.
Minor Malfunctions
The disadvantages of this motor also include a low life of the crankshaft position sensor and the absence of hydro-compensators, so that the valve gap you have to adjust.
The manufacturer says the engine life is 250,000 km, but it can easily go 400,000 km.
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