gumbymb

The AC in my 2000 E320 has been working great. Suddenly after parking for a shopping trip it doesn't. It is hot here in Phoenix... Here are the diagnostics:
1 94
2 91
3 105
4 105
5 102
6 173
7 07
8 91
Error codes: B1227, B1234, B1416 and E FF

In addition I put a gauge set on the car. Running the low pressure had my gauge pegged as high as it can go with the high side showing about 150psi. Any recommendations on where to start troubleshooting?

Plutoe

very simple
no 7 refrig pressure yours 7 spec 238
replace compressor or you have a leak in system that does not allow compressor to function whichever you will need dye when charging
plus you system faults B1227---faulty outside air temp-----B1234----faulty sun sensor and B1416----coolant circulation pump(heating system)
all your failures stress the system to control when and how AC/heat is regulated

H danielle

Make vaccum and leave it after vaccum for at least an hour and after that check the guage if there is no change in the gauges then there is no leaking,( the low pressure guage suppoused to be on -30 and high to be on 0)..if it is ok then switch on engine and switch AC on while recharging it by freon (1000 gram) try to make the rpm on 1.5 rpm but slowly not a sudenly and notice the low pressure guage if it is goes down then the compressor is ok ..