Thermostat change on the M273 engine.
Thread Starter
Senior Member
Joined: Dec 2013
Posts: 314
Likes: 35
From: New York
2010 CL550
Thermostat change on the M273 engine.
on my way to work this morning my check engine light came on. the common p0128 error, indicating a failing thermostat. relatively cheap part. my question is this..i noticed on the older 550 engines, attached to the thermostat is a nice, easily movable radiator hose..attached to my m273 engine, is some stupid clunky huge metal tube, that makes any work in that area basically impossible. What purpose does it serve? can i just get rid of that and use the old style radiator hose?
Last edited by COUPCONNOISSEUR; Feb 4, 2019 at 05:28 PM.
