Set up in 2001 in partnership with the GIPA, which markets it, the spare car part monitoring service consists of two distinct bimonthly monitoring reports: 1st level purchases and 2nd level sales.

The information is gathered by a combination of either fax/telephone or e-mail/telephone by the Institute’s interviewers, who specialise in gathering information in a professional environment.

The statistical processing carried out uses the weighted quota method by product family and participant category based on structural market data.

A – Barometer operating principle

Appearing bimonthly, both monitoring options produce 6 reports a year providing the following information:

• Bimonthly variations in turnover,

• Variations in the volume of technical products sold or purchased:

• Brake pads
  
• Brake disks
  
• Drum brake kits
  
• Shock absorbers
  
• Exhaust silencers
  
• Catalytic converters
  
• Tyres
  
• Passenger compartment filters
  
• Oil filters
  

• Variations in the volume of high sales volume products sold or purchased:

• Spark plugs
  
• Heater plugs
  
• Batteries
  
• Oils
  
• Windscreen wiper blades