83 w123 for the a/c. will work for 15-20 min. then the fuse blows.
Any ideas????

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81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project

If you have the original fuse........there's a modification that allows you to put a 30A fuse in that position. Apparently the older vehicles just cannot stay below the limit of the factory fuse.

The kit consists of a shunt with a fuse holder. You attach the shunt to the fuse box terminal screws and leave out the original fuse. I'm sure that Phil has the part number at his fingertips.

Would it be possible to just put a higher amp fuse in the space without moving it?.....safely

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81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project

Two points:

1. Sure, anything's possible

2. If it were safe, would they offer a kit? The fuse box wiring wasn't set up for the higher amps, the mod works well, and is not difficult to install

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Tjohn

82 300 SD
77 450 SL (gone)

I believe the heat generated by the larger fuse will give you problems.

Make sure you are dealing with the right fuse that the kit was meant for.
#8 fuse powers the compressor relay and clutch, Monovalve, blower, aux pump, and part of the controls; while #14 powers other aspects of the control circuit.

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'83 300D Turrrbo 295K miles

It's #14 that keeps blowing, and when it does, I have full time max heat.......not good down here in Fl.

__________________
81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project

You've got a different problem other than what the kit was designed for. That circuit must have a ground fault somewhere............