Two different 8-valve engines can be installed at Renault Sandero (1.4-litre K7J and 1.6 litre K7M). The main problems that may arise with these engines are: leakproofness of the thermostat; violation of leak-tightness of the ignition. The problem can be prevented by installing the thermal isolation puck between the coil and the engine; the problem with the launch, which is usually caused by the poor fuel or the firmware prowling problems. It may also be difficult to launch in the freezing cold due to lubrication; floating idle speed.
- A leaking thermostat;
- Violation of the tightness of the ignition. The problem can be prevented by installing the thermoinsulation washers between the coil and the engine.
- A startup problem that usually occurs because of poor fuel or firmware issues. It may also be difficult to launch in the freezing cold due to lubrication.
- floating idle speed.
