I am a new BMW owner and I'm driving a 323i convertible, 1999. I purchased the car with 113,00 miles on it and the check engine light was on. Ran the codes and minor repairs (O2 sensors) corrected that problem. I got home last night and the radiator has sprung a leak, I am in the process of removing it to replace it but I am having trouble trying to figure how the two plastic hold downs on the top two corners release, each has an arrow on the top pointing towards the front of the car (away from the engine). When you push it in the direction the arrow is pointing it lifts up (some) but does not come out of the radiator so it is free, so I'm stuck and do not want to break those fittings, I know it is probably pretty easy but I don't want to break them... Is there someone on the site that can help me out. Thanks in advance.