Again, mine is a 1989 model, and as far as I know, there are no differences between the first year of production (your '88) and the '89. The engine is designated as M103. Never heard of the 113. My speedometer (U.S. model) goes up to 160 mph which is the same as 260 kph (257.5 actually). The 260 kph label is not printed on the card as it would interfere with the odometer "hole". The last printed kph marking is 240.

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-Steven

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1959 190b, totalled
1968 220D, sold
1969 230/8, sold
1980 240D manual, gave away at 300k (stupid me)
1985 190D 2.2 manual, gave away to a youngster
1989 300CE, sold when I retired - major regrets