Drum shaft spider arms corroded & broken

This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.

Miele W3740 broken drum spider with limited parts availability

The problem

The washing machine is a Miele W3740 with a broken 3-arm drum shaft spider described as corroded/broken. The question was whether a spider from another Miele model could be used to repair it.

Likely cause

Confirmed fault is a broken drum spider. The discussion also strongly suggests corrosion of the spider and notes that any rebuild would also require bearing seals to avoid water leakage into the bearings. Compatibility with other Miele models was not confirmed.

What fixed it

No confirmed repair was documented. The accepted reply said Miele parts availability for this type of repair is very limited and that a drum/spider assembly was not found on Miele or third-party spares sites. A donor machine, genuine/compatible part, or made-to-order replacement spider were mentioned only as possibilities, not confirmed solutions. If a new spider were fitted, the drum bearings and seals would also need replacement. Exact repair was not confirmed.

Checks to try

• Looked for the part on Miele's website
• Looked for the part on third-party spares sites
• Considered whether parts from another Miele model might fit
• Noted that bearings and seals would also need replacement if the spider was changed

Parts or tools mentioned

• Drum spider
• Bearings
• Bearing seals
• Door seal
• Aquastop fill hose