I had the cills fill up on an Old Ford Ranger years ago, like you have mentioned on another thread it was obvious something was going on as it sound like I was driving a milk tanker. It was not immediately obvious to me where it was coming from but once I identified the problem I just pulled out two rubber bungs under the cills and a good bucket full came out, I wasn’t particularly bothered as I paid 60 TIMES less than I did for the IG !!!!!
@CountyV8, is there similar bungs for the IG, how did you drain it ?