i understand the ethics, but i don't understand why i should be held hostage to uninformed retail clerk who may claim that the E53 needs a battery registered to the car based on incorrect information given to him by his computer system...

at which point, defending my knowledge of the correct procedure is unethical? naturally, in this land of choice, i can go to another retailer for the product, which i will...

this is buyer beware environment and if the seller finds it ethical to boost his profits by upselling goods and services that are not needed, i find it ethical to decline the purchase of the goods and services that i find are not needed... by the same token, if i use that particular battery on a bench, i am still entitled to warranty - the batteries are not controlled substances requiring constant monitoring


by the way, did OP just drop the keys at the dealer, told them "oil change, fellows" and got slapped with a $500 oil change bill? then he is filthy rich and this post is needless...
if he, on the hand, was told that the oil change will run him $500 and he went for it, knowing that it will cost him $500, then i still find it strange to even spend time on this post...

i own one E53 and lease the other vehicle... why? i think a maintenance headache on one car is enough for me, thus i prefer the second car to be either insurance's headache or the dealer headache... we have a MB as a second car.,wife puts good 1800-2000 miles a month on it, let the dealer worry about things... that car gets no mods, nothings - just car washes and gas...