Remember to remove the 2 philip screws on the seat switch (if electric). The switch stops you from being able to slide up. Also the panal sticks on the top by the inner window seal.
Good luck
Ian

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Mercedes-Benz Master Guild - 2 years
Shop Foreman - 20 + years - dealer.
Part owner - MBZ Transmission remanufacture
2000 SL500
1999 ML430
1989 300SE