In Mercedes 126 Restore: Forgotten Fluids, Phase I we appeared on the rear differential. Now let's flip our consideration to any other fluid that the majority homeowners by no means hassle to switch – chronic steerage fluid.
POWER STEERING FLUID CHANGE
Maximum Mercedes 126 homeowners won’t ever take aside their recirculating-ball steerage tools field. However those who do acquire a new-found appreciation for the significance of unpolluted fluid within the power-steering machine. Along with the primary bug tools meeting and the interface between the ball nut and the field tools that in truth turns the Pitman arm, there are a number of units of needle bearings. These kinds of shifting portions are lubricated by way of stable flows of chronic steerage fluid. The extra closely infected that fluid is, the extra temporarily those portions will put on. And a worn steerage field interprets into sloppy steerage, doable protection hazards, and a pricey restore or substitute. (The ability steerage pump, in contrast, is way, a lot more straightforward to switch, and excellent used gadgets will also be sourced for as low as $ 50.)
There was some debate in regards to the propriety of the use of computerized transmission fluid (ATF) on this machine. Whilst ATF used to be specified within the homeowners handbook, ATF isn’t what it was and has turn out to be quite antagonistic to the numerous seals inside the steerage machine. Preferably, ATF will have to be eschewed in desire of simple outdated chronic steerage fluid. Whilst artificial fluids are to be had, typical fluids are completely wonderful.
To switch the fluid, fortify the entrance of the automobile on jack stands in order that each entrance wheels are off the bottom. Undo the hose clamp secures the go back hose to the go back "snorkel" screwed into the pump, and direct the hose into an acceptable container for catching the outdated fluid. Both plug the snorkel or loosen it with a 19mm wrench and switch it in order that it issues upwards, permitting you to fill the reservoir with out shedding fluid from the go back becoming. The usual process this is to start out the engine and upload fluid whilst the pump temporarily forces the outdated fluid out. However this process has some primary disadvantages. It’s maximum emphatically now not a one-man operation. The drift price is so speedy that there’s a nice chance of the pump operating dry and sucking air with out a stable provide of latest fluid is poured in. If issues get out of hand, you wish to have a helper to close the engine off in an instant. In case you should not have a helper and don’t wish to chance destructive the pump or pulling air into the machine, you wish to have a greater method.
Thankfully, it’s completely conceivable to pump out the outdated fluid in a extremely managed style just by turning the steerage wheel from prevent to prevent. Stay the fluid degree within the reservoir above the clear out to stop the ingress of air, and proceed till you’re glad that the fluid leaving the machine during the go back hose is blank. You want 2-Three quarts to totally fill up the fluid, regardless that in case you're attempting to take away all lines of (purple) ATF it’s possible you’ll to find it takes a bit extra to finally end up with a fully blank reservoir. Whilst you're glad, reconnect the go back hose and punctiliously bleed the machine by way of turning the steerage wheel backward and forward with the engine operating.
That is, in fact, the very best alternative to switch the clear out within the pump and check out the rubber go back hoses, changing if essential. The truth that Mercedes cave us a clear out within the chronic steerage pump tells us one thing in regards to the significance of unpolluted fluid. What number of different automotive producers do that?