Sorry I haven't had the time to comment yet.
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Originally Posted by babymog
The Technical Data mileage figures posted seem high for a sedan, unrealistic for the T-sedan. Still, if you found that you were getting this mileage at one time, seems that something must have changed. Certainly the top speed figures are weak, and I expect that 0-55 is no longr 8.5seconds.
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I don't know the 0-55 mph spec, but the 0-100 km/h (0-62 mph) is 10,9 sec for both W124 (wagon) and S124 (estate). Consumption is also the same.
Quote:
Originally Posted by babymog
Can you push the car fairly easily on level ground or is it difficult?
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As I said, this has been going on for quite a time, so if this was due to friction, I would have known long time ago because of something being worn out very fast. I've been thru different sets of tires, with no influence on consumption or power.
Quote:
Originally Posted by babymog
The lack of high-end boost however indicates a restriction either in airflow (intake or exhaust) or in fuel (which can be filters). Since the shift point is only 4600, which from memory seems low, it is hard to tell if the governor / high-idle setting is low enough to be in the throttling zone where it is starting to reduce fuel flow too early.
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I am pretty certain the issues I am experiencing is because of the engine not being able to use the fuel as efficient as it is supposed to, therefor demanding more fuel to do the same job, and not being able to deliver enough power. As I said, I -think- this is why, but I am listening to all theories.
Quote:
Originally Posted by babymog
Have you tried shifting it manually to see what max RPM it reaches and whether it is within spec?
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I have tried, but I don't like it. 4600 rpm is the correct shift point, it is where max power is, and it also shift corretly as the shift points in the taco indicate. 1-2 is at approx 60 km/h , 2-3 at 96 km/h and 3-4 at 140 km/h (divide on 1,6 to translate into mph)