I just had the accumulators replaced on my wife's wagon yesterday. It made a tremendous difference in the ride. I bought them from an on-line supplier for $147 each (Canadian) and my mechanic charged me two and a half hours labour, including going through some other diagnostic steps with the SLS system, bleeding the system and dealing with one accumulator that was difficult to detach from the hydraulic line.

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Jonathan

2011 Mazda2
2000 E320 4Matic Wagon
1994 C280 (retired)