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  #1  
Old 07-24-2010, 02:58 PM
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Join Date: Jul 2010
Posts: 1
560 sl climate control / blower

2 problems: (1) turn ignition, engine starts, but unless I back off the key just a click toward off the climate control won't kick-in, blower or cool air, (2) back off the key and the cool always comes on, but sometimes (erratically) the blower won't come on for about 8 - 10 minutes (sometimes more, sometimes less), then functions normally for the duration.

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  #2  
Old 07-24-2010, 03:16 PM
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Join Date: Oct 2004
Posts: 3,733
You have a worn ignition switch. Replace the electrical portion of the switch before attempting to diagnose anything further.
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90 300TE 4-M
Turbo 103, T3/T04E 50 trim
T04B cover .60 AR
Stage 3 turbine .63 AR
A2W I/C, 40 LB/HR
MS2E, 60-2 Direct Coil Control
3" Exh, AEM W/B O2
Underdrive Alt. and P/S Pulleys,
Vented Rear Discs, .034 Booster.
3.07 diffs 1st Gear Start

90 300CE
104.980
Milled & ported head, 10.3:1 compression
197 intake cam w/20 advancer
Tuned CIS ECU
4 ignition advance
PCS TCM2000, built 722.6
600W networked suction fan
Sportline sway bars
V8 rear subframe, Quaife ATB 3.06 diff
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  #3  
Old 07-26-2010, 11:22 AM
david s poole
 
Join Date: Mar 2005
Location: dallas
Posts: 1,822
absolutely agree.

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David S Poole
European Performance
Dallas, TX
4696880422

"Fortune favors the prepared mind"
1987 Mercedes Benz 420SEL
1988 Mercedes Benz 300TE (With new evaporator)
2000 Mercedes Benz C280
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