Tag: fluid

Mercedes CLS55 AMG W219, Replacing the 722.6 Gearbox Conductor Plate & Transmission Fluid Refresh

As part of the big preventative maintenance, I swapped out the conductor plate for the 5-speed 722.6 automatic torque converter gearbox (which is pretty much bulletproof) and also did a fluid refresh. Its almost impossible to get all the fluid out, that is done better with a flush (done with specialist equipment).

10 liters of LiquiMoly Top Tec 1800 ATF fluid
Febi Bilstein Transmission service kit (gasket, filter, bolts, drain plug, copper washer, connector)
New conductor plate
New conductor plate
Valve body & old conductor plate. See the black residue, time for some cleaning
More of that black residue…
New conductor plate fitted, cleaned the valve body as much as possible
Valvebody back in place, new filter mounted

I replaced almost 6 liters, the rest remains in the system off course in the coolers and the rest of the transmission plumbing. Maybe somewhere next year do this again, but also replace all/some solenoids and go to a transmission specialist.

Pro tip: Transmission adaptation reset is mandatory! I used method 2 of the video below




Mercedes CLS55 AMG W219, Replacing The Power Steering Reservoir & Fluid

The power steering reservoir on the W211 & W219 platform have a filter built in. This filter is not serviceable, meaning that you need to replace the reservoir if you also want to replace the filter.

I took the liberty to replace the reservoir/filter and also flush the complete system and put fresh new synthetic oil in.

I used a vacuumpump to get most of the old red mineral fluid out. Then replaced the reservoir and used the “lock-to-lock” steering motion to pump all the old fluid out. Temporarily cap off the return line on the new reservoir and extend the return line to any suitable container for the old fluid.

I used about 2 liters to flush the system and 1 liter to fill the system. Febi Bilstein CHF 11-S Nr. 06161 is the correct fluid for this system.

Steering goes noticeably lighter after this service!

Old fluid coming out
Almost done flushing (fluid is becoming more green/blue-ish)
Made this shot after removing the reservoir. It clearly shows why replacing the serpentine belt is a bit of a hassle there…



Toyota Aygo DIY Transmission fluid change

Decided to change the transmission fluid / oil with some fresh new fluids / oil on the Toyota Aygo (also applies to Citroen C1 / Peugeot 107). Can only have a positive effect on changing gears and fuel economy. It’s an easy job which should take you between 30-60 minutes. Fluid used: Castrol 75W90 Syntrans Universal Plus (1.7L needed).

First make sure that you try to undo the filler nut first (always!). The filler nut can be found at the front of the engine, right behind the radiator / fan.

Toyota Aygo - DIY Transmission Fluid Change

This is the location of the draining plug. Has the same size as the filler nut and is easily accessible.

Toyota Aygo - DIY Transmission Fluid Change

After draining (let it drain for 10-15 minutes), redo the draining nut and prepare for refilling. Make sure the diameter of the filling hose is smaller than the filling port, as this will increase the filling speed significantly.

Toyota Aygo - DIY Transmission Fluid Change

This is how I filled the transmission again.

Toyota Aygo - DIY Transmission Fluid Change

Results, super smooth gear changes! Have to comment on fuel economy, as it is too soon to tell.

Nederlandse vertaling

Besloten om de transmissie / bakolie zelf te vervangen met verse olie / vloeistoffen. Kan alleen maar een positief effect hebben op het schakelgedrag en het verbruik van de Aygo. Dit is een klusje wat je prima zelf kan doen en kost je ongeveer 30-60 minuten. Gekozen vloeistof: Castrol 75W90 Syntrans Universal Plus (1.7 liter benodigd voor een schakelbak, 1.4 liter voor een automaat).

Als je een vloeistof kiest, zorg er dan voor dat de vloeistof voldoet aan de API GL-4 standaard.

Zorg er altijd voor dat je de bout van het vulgat eerst loshaalt voordat je de boel laat leeglopen! De bout voor het vullen heeft dezelfde afmeting als de drain plug. Als je gaat bijvullen, zorg dan dat de diameter van de slang een stukje kleiner is dan het vulgat, dat helpt met de snelheid van het vullen.