I have a 1999 SLK 230 that came into the shop for a blown head gasket. Repaired the head gasket and noticed that the car had a problem accelerating. Checked the engine codes and found that the camshaft solenoid was not operating(stuck in place). Applied 12 volt power to the actuator and got the actuator working better but still not as good as it should be. But now heres the real problem. The customer picked up the car and drove it home with no problems. Started th car the next day and drove the car to work. On the way back home the car died on him while driving down the interstate. Coasted to the side and parked the car. After sitting for about 15 minutes the car started back up and he was on his way. The next morning he drove the car for about 15 minutes and the same thing happend. Checked codes in engine computer and this is what I found
1) P1235 Unknown fault
2) P1236 Unknown fault
3) P 1420 Air puimp switchover valve (y/32)
4) P 1525 Right adjustable camshaft timing solenoid (Y49/2)
5) p0170 Fuel trim bank 1 malfunction.

This code was in the traction computer c1200 Stop lamp switch (S9/1) short or open circuit. I replaced the airflow meter, air filter, PCV valve and hoses, and Cleaned the vacuum box on top of the valve cover. Customer drove car for two more days and the car let him down again but this time the car would not crank over and when I hooked my computer to the car it would not communicate with it. I also found that when you turned the key to the on position the fan would start running. I checked the alarm computer and found these codes.
1) b1712 Alarm ATA triggered via left dooe switch ( S 17/3)
2) B1713 Alarm ATA triggered via right front door (S17/4)
I cleared those code and for some reason the fan did not come back on. I noticed that if the fan is not running the car will start but if the fan is running I can't get into the engine computer and the car will not crank over. Hope this will be helpful to anyone who can help me with this problem. Thanks in advance

__________________
DRIVE HARD-DRIVE FAST-DRIVE TO GET THE HELL OUT OF MY WAY.

1986 190E 2.3-16 Pearl Black!!
1987 190E 2.3-16 Smoke Silver!!
1986 190E 2.5-16 Pearl Black!!
2004 CLK 500 Cabrio Designo package!!
1994 E320 Cabrio Red with black top!!
1985 500 SEL Anthracite Grey !!
2011 Subaru Impreza STI 380HP (Yeah Baby)