Mercedes: Mercedes 300D, mercedes benz 300d, worldpac com

Question
We have a 93 Mercedes 300D with 250,000 miles. We live in Las Vegas. It runs like a dream, but when the temperature outside gets over 95 degrees the A/C stops getting cold, and the temperature gauge rises. What could this be?

Answer
Answer:
* Failed cooling system thermostat
* Failed A/C Temp. Switch
* Failed aux cooling fan.
* Failed fan clutch
* Failing water pump
* Plugged radiator = thermal overload

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PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1993 Mercedes Benz 300D Turbo 2.5

G4001-49781 Thermostat Kit   Wahler    IN STOCK
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Part: A/C Temp. Switch
 Note:  @ receiver drier
Located on receiver drier for auxiliary cooling fan. Identified by 2 spade terminals on short pigtail with red base.     
R1055-29376 A/C Temp. Switch IN STOCK
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G5000-34209 Auxiliary Fan Assembly   ACM    IN STOCK
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G5010-81391 Fan Clutch with Fan   Sachs    IN STOCK
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G3000-32084 Water Pump   Geba    IN STOCK
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G1000-40399 Radiator   IN STOCK
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