Many FSS topics are covered by these threads.

Reset of Maint. required message
Reset of Maint. required message

2006 320 Cdi
http://www.peachparts.com/shopforum/diesel-discussion/172002-2006-320-cdi.html#post1344520

Flex Service Question
http://www.peachparts.com/shopforum/tech-help/89942-flex-service-question.html#post592181

Skipping Service A and B?
http://www.peachparts.com/shopforum/off-topic-discussion/243384-skipping-service-b.html#post2087686

Changing oil & filter
http://www.peachparts.com/shopforum/tech-help/161204-changing-oil-filter.html#post1243250

Service B Reset
http://www.peachparts.com/shopforum/tech-help/221117-service-b-reset.html#post1842577

FSS cars, why do you have to use syn. oil
http://www.peachparts.com/shopforum/tech-help/52820-fss-cars-why-do-you-have-use-syn-oil.html#post310927

FSS and Your Local MB Tech
http://www.peachparts.com/shopforum/tech-help/16674-fss-your-local-mb-tech.html#post82673

FSS Warning Message: Service in XX Days
http://www.peachparts.com/shopforum/diesel-discussion/189625-fss-warning-message-service-xx-days.html#post1519603

Reset maintenance indicator S320
http://www.peachparts.com/shopforum/tech-help/179046-reset-maintenance-indicator-s320.html#post1416579

2007 GL450 Resetting Maintenance Service indicator
http://www.peachparts.com/shopforum/ml-gl-g-wagen-r-class-unimog-sprinter/194114-2007-gl450-resetting-maintenance-service-indicator.html#post1563148

How does FSS work anyway?
http://www.peachparts.com/shopforum/tech-help/76975-how-does-fss-work-anyway.html#post485319

Wrench symbol in odometer?
http://www.peachparts.com/shopforum/ml-gl-g-wagen-r-class-unimog-sprinter/42835-wrench-symbol-odometer.html#post245968

FSS resetting
http://www.peachparts.com/shopforum/diesel-discussion/106070-fss-resetting.html#post729330

99 SLK 230 FSS Reset
http://www.peachparts.com/shopforum/tech-help/17638-99-slk-230-fss-reset.html#post88510

How to reset the FSS on 2008 Models
http://www.peachparts.com/shopforum/tech-help/231413-how-reset-fss-2008-models.html#post1948438

How do I cancel the message on odometer
http://www.peachparts.com/shopforum/tech-help/89891-how-do-i-cancel-message-odometer.html#post591653

Resetting Service Light on a 210
http://www.peachparts.com/shopforum/diesel-discussion/151872-resetting-service-light-210-a.html#post1154658

Resetting the maintenance indicator 2007 C230
http://www.peachparts.com/shopforum/tech-help/230141-resetting-maintenance-indicator-2007-c230.html#post1935814

Reset the FSS (Little Wrench)?
http://www.peachparts.com/shopforum/tech-help/108414-reset-fss-little-wrench.html#post750128

Resetting FSS + Cabin Air in 04 ML350
http://www.peachparts.com/shopforum/ml-gl-g-wagen-r-class-unimog-sprinter/196548-resetting-fss-cabin-air-04-ml350.html#post1586438

ML500 service message
http://www.peachparts.com/shopforum/ml-gl-g-wagen-r-class-unimog-sprinter/237630-ml500-service-message.html#post2018584

Difficulty resetting "Service Due Now" on 99 Wagon
http://www.peachparts.com/shopforum/tech-help/167022-difficulty-resetting-service-due-now-99-wagon.html#post1299499

Service indicator reset?
http://www.peachparts.com/shopforum/tech-help/29708-service-indicator-reset.html#post160092