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2014 E350 Power Steering Malfunction

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Old Oct 21, 2025 | 06:22 PM
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Motoroger's Avatar
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2014 e350 wagon
2014 E350 Power Steering Malfunction
Ran through water on the interstate and on the way home the message came up and hard to steer. Pulled the codes and got C063300, U0415-00 and U0420-000. Checked the connections on the power steering rack and it’s getting 12v at the rack.
Any solutions would be appreciated.
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Old Oct 22, 2025 | 01:00 AM
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CaliBenzDriver
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W212 MY'14 M276-3.5NA @75kMi
soaked electric rack..
Originally Posted by Motoroger
Ran through water on the interstate and on the way home the message came up and hard to steer. Pulled the codes and got C063300, U0415-00 and U0420-000. Checked the connections on the power steering rack and it’s getting 12v at the rack.
Any solutions would be appreciated.
Get your certified Mb specialist to install a rebuilt unit.
The internal solderless connections are non serviceable...

You need a reliable steering rack full-time.
Last edited by CaliBenzDriver; Oct 22, 2025 at 01:01 AM.
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Old Feb 15, 2026 | 08:41 PM
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From: Fleriduh
W212 E63S Wagon - GSL580 - E63 - E350 - C300
Entire front fuse block (bus)...is it connected properly?
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Old Feb 15, 2026 | 09:27 PM
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2014 e350 wagon
Replaced the rack
Originally Posted by OldManAndHisCar
Entire front fuse block (bus)...is it connected properly?
yes. It ended up being a bad rack.
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