2009 Mercedes-Benz S-Class Consumer Review: Not the Legendary Reliability

2009 Mercedes-Benz S-Class - Consumer Review

Average Consumer Rating

12 Total Reviews

S550 4MATIC Sedan (5.5L V8 AWD 7-speed Automatic)

Build Quality
Reliability Value
10 of 11 people found this review helpful
Not the Legendary Reliability of Yester Years
By kwbenzer on


2009 Mercedes-Benz S-Class S550 4MATIC 4dr Sedan AWD (5.5L 8cyl 7A)


Generally I loved to drive this car. Reasonable performance for a full-size sedan. However, it's exceedingly thirsty. As always, the published fuel economy is way more optimistic than real world driving condition. A typical mix of city and highway gets about 450km out of a 100l tank. Do the math -- consumption is generally high teens per 100km.
After just over 4 years of age, and about 52000 kilometers, the transmission failed. The cost of parts and labour to replace the entire transmission was over $14,000. So where's the "legendary reliability, to quote Mercedes? It's a legend!

Best Features

Sirius satelitte radio. Keyless go. 4Matic system.

Worst Features

Reliability is tragic -- needs improvement. Bluetooth is way too slow. And system can't load large address books. Gives up after a couple hundred entries.
Recommend (10) (1)

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