2008 Mercedes-Benz S550 4MATIC Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2008 Mercedes-Benz S550 4MATIC
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2008 Mercedes-Benz S550 4MATIC ProblemsOil Seepage on Back of the Cylinder Heads
The Mercedes Benz S550 $Matic may have engine oil seeping or leaking from the back of the cylinder heads. This is commonly misdiagnosed as leaking valve covers.
On the back of the cylinder heads there are three, in total, plastic expansion plugs that plug access ports to the camshafts. These plugs are well known for seeping oil, and leaking if left unattended. The oil will run down the back of the engine and eventually make it to the ground.
Replacement of these three plastic plugs is extremely simple, and should be done as regular maintenance. The recommended interval for replacement is every 60,000 miles.
The transmission drive selector module may fail resulting in the loss of gear selection capability. This condition can leave the vehicle stranded, and will require replacement of the drive selector module.
2008 Mercedes-Benz S550 4MATIC QuestionsIm thinking bout buying an 2008 S550 what should i watch out for (1 answer)
The other day I was driving my 2008 s550 battery appeared on his dashboard and the radio went lower and it's scaring got a pinch tighter I turn the car off and started back up it was okay for another 10-15 minutes please help
2008 Mercedes-Benz S550 4MATIC RecallsInternal Failure of Front Interior Control Module
Transistors used in the front signal acquisition and actuation module (SAM-F) may have been damaged during module assembly. As a result, the module could fail without warning, increasing the risk of a crash. Dealers will inspect and replace the affected modules as necessary. This recall is scheduled to begin on May 2, 2008. The Mercedes-Benz recall number is 2008 030005.