Maintenance 5 Heater/air conditioning – checking rate of air flow 1. Turn start switch to position 'I'. 0 I P II 75_209 2. Open all air circulation nozzles and air outlet nozzles (see arrows). 3. Switch blower on. 4. Check whether sufficient air flows out of the air outlet nozzles. 5. If insufficient air is coming out of the jets, either the filter fleece in the heating/air conditioning unit is dirty and will have to be cleaned or replaced or the condenser in the air condi tioning system is dirty and will have to be cleaned; see "Heater/air conditioning – cleaning/replacing filter fleece" on page 5-57.
Miscellaneous tests before starting work Check that the lighting equipment operates correctly; check it for dirt and damage. Check the measuring instruments. Check both the horn and the reversing warning horn. Check both clearance and operation of the steering wheel. Check the function of the rear-view mirror; check it for dirt and damage. WA90-5 – VEAM270100 5-33