The amount of deposit will depend on the rental company and often, the city of pickup.
See more about Car Rental Deposits
I had to guess at a city, so that I could check the terms and conditions for Thrifty car rental in Germany, so I chose Munich, as an example.
I first checked for information for the deposit at the time of pickup. Under the terms and conditions for an economy auto in Munich, the Thrifty website stated:
Deposit required at time of rental is the amount of the insurance excess for the vehicle. Amount varies by car type from EUR 1200 to EUR 2200.
Because you are looking at an economy auto, your deposit would be on the lower end of those two figures.
I then looked up information with regards to the Loss Damage Waiver offer on the rate quote, specifically as it applies to Thrifty locations in Germany. The terms and conditons stated:
To decline Thrifty's optional LDW, renters must have US issued Gold/ Platinum MasterCard or Canadian issued Gold/Platinum Visa Card and provide WRITTEN PROOF by the credit card insurance company that the card has relevant coverage for GERMANY specifically.
These cards are only accepted for rentals of less than 28 days.
If you do not have the acceptable credit card AND cover letter then you must buy the LDW offered by Thrifty. They do NOT accept insurances purchased on third party websites.
So, as long as your Chase Card is a gold or platinum one, and you provide your letter, it will allow you to decline the Loss Damage Waiver for a car rental in Germany.
*Note: Car rental companies can modify policy at any time; I make every attempt to maintain up-to-date info, but always check with an individual company to verify any policy. See: Disclaimer