11/14/2022 0 Comments 722.9 transmission repair manual pdfIf the oil is not changed for a long time, it becomes very dirty, and the transmission overheats. The variator is very reliable on the mechanical part, but it can break because of improper operation. The oil pump of the rotary type, which creates a huge pressure, is mounted on top of the hydro block. Therefore, you should always order a repair kit of gaskets and seals to rebuild Mercedes 722.8. Riding with worn rings and seals leads to oil starvation and premature combustion of «eternal» frictions. Therefore, when overhauling, it is considered unwise to save on reverse clutches. Masters often change both packages of frictions at once, since the variator 722.8 is removed along with the engine, and the frictions ruined by half already include the clutch with shocks. Overhauls with bulkhead age machines usually require a set of consumables (gaskets and seals) and a set of frictions. In the first repairs, 722.8 transmission comes due to the traditional fault of sub-suppliers - overheating and failure of the control board. Mercedes 722.8 transmission problems and breakdowns In this case, computer diagnostics shows one or more errors. The transmission becomes in emergency mode, the inscription «Transmission Visit Workshop» lights up on the instrument panel. This will extend the life of the board.īesides oil overheating, the main problem is the failure of the control unit (board) of the gearbox 722.8. If the crumb on the magnets appeared - you should examine the hydro block and the board, which also accumulates magnetic crumbs and then do cleaning as often as the engine oil maintenance. Standard fluid Titan CVT is produced for Mercedes FUCHS.įluid in the variator 722.8 should be changed as often as possible along with the felt filter, carefully examining the magnets for metal chips. The oil filter of ATF 28-CVT type is used. The transmission Mercedes 722.8 was produced from 2004 to 2012 and was only available on A-Class and B-Class models with engines up to 2.0 liters and 300 Nm of torque. The hardware of the CVT 722.8 from Mercedes is traditionally reliable. It is quite reliable compared to the Japanese and goes to the end of the life of the variator. The pump is of the Mercedes series and rotary type, which creates huge pressure. This is an analog and competitor of the legendary Japanese variator JF011E. Its design is based on the standard patent of a variator with a «pushing» belt produced by Bosch-Fondorn and the most expensive consumable - the belt itself. This variator was installed on other cars of the A series in the 160-m body with engines from 1.5 to 2.0 liters and on Tourers of the B series. Transmission of the 8th series Mercedes 722.8 (released in 2005) is often found on the Mercedes A170 series. 722.8 Mercedes Transmission - information about rebuild
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