5 Apr 1943
18.10 hrs, NE of the Cape Verde Islands: a British Sunderland aircraft (RAF Sqdn 204/H) dropped eight bombs on U-198, one of which hit the stern, but bounced off without detonating.At 20.40 hrs, the same Sunderland dropped four more bombs on the boat, again without causing damage. (Sources: Rohwer/Ritschel)

17 May 1943
Attacking a small convoy (LMD 17) the boat was depth charged by its escorts, two ASW trawlers and one aircraft, about 55 charges in all. No damage. One ship sunk. (Sources: Blair, vol 2, page 297)

19 May 1943
20.58 hrs: a British Catalina aircraft (RAF Sqdn 262/ J) dropped 5 bombs on the boat. No damage. The aircraft was damaged by flak and had to return to base on one engine. (Sources: Rohwer/Ritschel)

31 May 1943
A corvette escorting a small but well escorted convoy in the Indian Ocean attacked the boat and drove it very deep but without serious damage. At 19.43 hours, the boat fired at an approaching British Catalina aircraft (RAF Sqdn 262 / C) and escaped by crash-diving, but then lost the convoy. (Sources: Rohwer/Ritschel)

6 Jul 1944
Two Ventura aircraft based in South Africa attacked the boat, which opened fire with the AA guns and fought off the attack. The boat was only damaged slightly and continued its patrol. (Sources: Blair, vol 2, page 540)

19 Jul 1944
After the boat unsuccessfully fired torpedoes at a freighter, a corvette dropped depth charges. No damage. (Sources: Ritschel)

6 recorded attacks on this boat.