To remove

Remove the battery .
Remove the battery's air inlet pipe.

Fig 1: Illustration For Steps 2 And 3
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Cars with petrol engine: Press in the catch and move aside the fuse box in front of the battery.
Cars with diesel engine: Press in the catch and move aside the power steering fluid reservoir.

Fig 2: Locating Power Steering Fluid Reservoir Catch
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Loosen the catches and move aside the heat shield, letting any components remain on the heat shield.

Fig 3: Locating Heat Shield Catches
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Cars with theft protection: Detach the bonnet switch from the battery cover.

Fig 4: Illustration For Steps 6 - 8
Courtesy of SAAB-SCANIA OF AMERICA, INC.
Undo any wiring harness clips from the battery cover.
Remove the bottom of the battery cover.
Remove the cable's nut and bolt.

Fig 5: Identifying Cable's Nut And Bolt
Courtesy of SAAB-SCANIA OF AMERICA, INC.