1 CostHelper readers report costs of $1,000-$3,700 for major air conditioning repairs, with an average of $1,829. 2  Installing air conditioning in a vehicle that doesn't have any can cost $1,500-$4,000 or more, depending on location and the vehicle's year, make and model; luxury vehicles can cost even more. This generally includes replacing a few parts like hoses, sensors, or either the compressor or condenser. 2  CostHelper readers report paying $171-$727 for minor air conditioning repairs, at an average cost of $488.
TTL stands for Through The Lens, and in the case of SLR metering, it indicates how the light is measured--that it's the light coming through the taking lens, rather than, say, an exterior sensor.
However, the content will apply as well to 'Advertising' as it does to 'Marketing'. More detailed definitions of ATL, BTL and TTL marketing. Here is a description of the terms mentioned above - we'll then go on to look at a few examples a bit further down this post. ATL Marketing Definition. 'ATL Marketing' stands for 'Above The Line Marketing'. This kind of marketing is the kind of marketing that has a very broad reach and is largely untargeted.