Subject covered here is one of three-hundred-twenty-nine turbo Highlines made. There were two separate upstanding models in E23 line-up, Executive and Highline. In BMW sale brochure these models were “meant for people who have achieved so much that they do not need exaggerations.” Common for both was luxury standard equipment and options. As starters this meant special leather interior, air conditioning, electric seats and backseat remote for radio/front-passanger seat, located inside armrest.

Leather interior in Highline was two-toned cow hide and covered also dashboard and pillars. There were exotic options such as gasoline heater for cabin, electric rear seats and alarm system available. Highline in question had following options: limited slip differential, alarm system, insulated windows, laminated rear window, electric sunroof, electric seats, headlight control, automatic air conditioning, cruise control and velour mats. Serial number on Highline should have last seven digits between 1150001 and 1150329.

This Highline was originally sold in Germany and imported to Finland twelve years ago. Bought for summer drive with some work to be done, things turned out quite opposite. Car has seen many owners and some effort before. All together it turned around as great investment with very steep learning curve. Car is great fun to drive at current state, thought there is lot of things to do, paint job and interior trim being final steps. Past five years of ownership car has been in slow process of reconditioning.

Basic idea was to try drive highline at times while bringing it back to life. Beside unfinished rust repairs, summary of parts been replaced or rebuilt is extensive. With 30-year-old car with 300 000 kms, best approach is to replace parts with new or rebuild ones if possible. This way you are likely to spend some time driving also. Year 2015 car had winter tyres and was driven first time in winter for many years. Winter driving is not much fun at all, once boost hits some serious concentration is needed to stay on road.

List of parts either replaced or rebuilt so far:

Shocks, springs, exhaust system, fuel pump, fuel hoses, coolant hoses, radiator, heater core, drive shaft, front wheel bearings, pistons, engine bearings, timing chain, oil pump, fuel pressure regulator, ignition coil, intake rubber boots, air flow meter, fan viscous coupling, engine temperature sensors, fuel injectors, starter, alternator, battery, headlights, fog lights, coolant pressure tank, gear lever switches, gear lever indicator, hydraulic unit sensors, thermostat, steering pump wheel, cruise control unit, turbo charger, wastegate magnetic valve, rear brakes, tie rod center, steering arm bushing, steering lower joint, throttle angle indicator, cylinder head, camshaft, water pump, additional electric fan, front brakes, turbo cooling ducts, engine rubber mountings, horns, relays, wheels, front support bearings, brake hydraulic booster, brake master cylinder, hydraulic hoses, blower unit, blower housing, brake fluid tank, idle microswitch, crank position sensors and viscous fan blades.

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