There was no evidence of blown rings, gaskets or any other reason for the presence of this fluid in the intake manifold I can think of. I'm praying its just the carbon buildup that's dissolved in the trace fuel that ran out but its slippery like... During re-install I tilted the intake manifold up on the front edge tip to pick it up and out ran which appeared to be old dirty crankcase oil out of the #1 pipe. My metering plate and crankcase to air cleaner breather tube are clean and dry so I don't think it is anything other than a mix of oil vapor, carbon and gas residue that has been collecting in the lowest spot in the intake system for 25 years and... But unlike just fuel, that stain on the garage floor did not evaporate like gas would alone but remains like an oil stain.
With the optional all-wheel drive, its name becames GLK350 4MATIC (starting at $ 37,880 MSRP ). Standard equipment of 2012 Mercedes-Benz GLK-Class includes 19-inch alloy wheels, front and rear foglamps, automatic headlights, automatic wipers, roof... Continuously variable timing of both the intake and exhaust valve coupled with a dual-stage intake manifolds helps the V-6 provide 100% of its peak torque from 2,400 – 5,000 rpm, ensuring immediate response with every throttle input. The safety and security systems of Mercedes-Benz GLK include 11-way air bag protection, seat belt technology, NECK-PRO front head restraints, antilock disc brakes with brake assist and more. The Lighting package adds to Mercedes-Benz GLK350 bi-xenon headlamps, headlamp washers and LED running lamps. The 2012 Mercedes-Benz GLK-Class is a compact crossover SUV and it features a defined exterior and a stylish interior, focusing on passenger safety and comfort. The 2012 Mercedes-Benz GLK comes only with one model, the GLK350 (at $35,880 MSRP).
