• the car is driven only unleaded petrol
• car is originally equipped with catalytic converter
• installation of catalytic converter has to take place in specialized diagnostic station or in a car's workshop allowed to interchange of exhaust systems
• delete all car defects which may cause damage of catalytic converter
• together with replacement of catalytic converter caused by expenditure (80 000, 100 000 km) lambda probe has to be replaced
• if there is a need of placing connector in front of catalytic converter, only connectors from steel pipes must be used with paying attention on tightness of whole exhaust system.
• catalytic converter must be used strictly according to permissible engine capacity.

  AWG POLONEZ is not giving guarantee on mechanical damage of it's catalytic converter. Guarantee is not given when a car is fuelled by gas. Guarantee card without date, stamp and signatures, or with any amendments and deletions is invalid. In case of occurrence of defects in correct work of catalytic converter caused by producer's fault, catalytic converter will be replaced with new one at the place of its purchase after showing valid guarantee card and receipt confirming buying. In case of loosing guarantee card AWG POLONEZ is not offering copies.

• it's forbidden to run car using mechanical power from outside (by pushing or towing)
• it's forbidden to control work of engine with removed endings of ignition wires
• sparking plugs have to be replaced strictly according to producer's recommendation, average on every 10 000- 15 000 km
• high voltage cables should be controlled
• engine oil must be replaced strictly according to producer's recommendation. Engine work must be periodically checked in specialized diagnostic station.

Three way catalytic converter was designed to meet european standard for exhaust fumes EURO 2.