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Mercedes-Benz GL320 BLUETEC Questions

Get answers to questions about your Mercedes-Benz GL320 BLUETEC at RepairPal. Find solutions, diagnose problems and get back on the road.

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It seems like there is possibly a short in something because you can hear the fan running, but it'll drag or not run very well then it will switch to blowing stronger, but the air is usually just outside or recycled air. It is not cooled. It will occasionally switch to cooled air, but you never know when its going to work or not. Its usually not working.