Shortly after purchasing my first MBZ, I discovered, with the aid of members of this forum, that I have an ALD and not an ALDA on my IP. They also suggested that I may have a non-turbo IP. Can anyone tell me how I can determine if the IP is non-turbo or turbo?

Using a mirror and magnifying glass, I read some numbers on the BOSCH plate attached to the side of the IP. The number appears to be RW375/2200WW27. I am not positive that I correctly read the number. Especially the last two digits (27) The numbers are small and inverted using the mirror.

Also, Would not having the correct IP cause any damages to the engine or any other components?

Thanks in advance.

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1982 300-D Turbo 169K miles on the odometer
1986 420 SEL 165k miles on the odometer