Whirlpool, Electrolux, Miele... the major appliance makers of North America and Europe all are having same problems. Declining sales due to a host of factors. Everything from consumers being short of ready money to market forces such as declining new home starts.
Making matters worse is the onslaught of Asian appliance manufacturers such as LG, Haier, Samsung, and others. If they're not buying American or European appliance makers (such as GE), they're saturating North American and European markets with affordable and innovative appliances.
Most Americans wouldn't know Bosch name from Adam, they do however know Whirlpool and the family of brands it acquired over many years: Maytag, KitchenAid, Amana, JennAir, Inglis. Europeans would know Bauknecht, Privileg, Lade and Hotpoint
It is the perceived value of those brands along with of course Whirlpool Bosch could be eyeing in terms of making any such deal work in long run.
WP has been spending heavily on new R&D centers recently. Riverview Drive plant was repurposed to a R&D center for refrigeration. WP also is putting finishing touches on a huge new laundry and dishwasher R&D center on Upton Drive
It's all just rumors and whispers as of now. If Bosch does put a serious offer on table WP's board would be duty bound to consider.