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There are few more iconic model lines in the prestige car market than the BMW 3 Series line-up.
Launched in 1975, it was the second-generation E30, released in 1983, that better reflected BMW's rear-wheel drive compact sedan aspirations.
Those aspirations were even more apparent with the M3, which debuted in 1986, and reset the bar by which rear-drive sporting sedans would be forever judged.
Now into its sixth generation, the line consists of the four-door 3 Series sedan and convertible ranging from the $82,045 3 Series 330i Sport Collection to the $116,900 3 Series M340I Xdrive. Also - somewhat unusually - a two-door derivative known as the 4 Series. There is an increased focused on its M3 and M4 sports car lines, as well, with the largest array of fast 3 Series ever derived now on sale.
The 330e is a plug-in hybrid (PHEV), so it has a petrol engine and a smaller battery pack than a full EV (which runs exclusively on battery power). That means the BMW’s battery should be less expensive to replace if it ever needed to be.
At the moment, the world is waiting to find out how long EV batteries last, but it’s looking like between 10 and 20 years is going to be the magic number. A lithium-ion battery like this one will last longer if it’s never over-charged and is cycled regularly rather than left sitting for long periods.
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There are two likely suspects here. The first is a blown head gasket which is allowing the oil and coolant to mix. Sometimes this shows up as oil in the coolant, sometimes as coolant in the oil. Sometimes both.
But before tearing the engine to pieces to change the gasket, it’s worth checking if the car is fitted with either an engine or transmission oil cooler. These often use the engine’s coolant to keep the oil or transmission fluid cool, and a failed one can allow the two fluids to mix, showing up as oil in the radiator or header tank.
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The engine in the car you’re looking at has the codename N42. It has a timing chain rather than a rubber timing belt, so that should not need to be changed for the life of the car. However, life is not always that simple and the N42 has a bit of a reputation for developing wear in the tensioners that keep the timing chain taut. If that happens, you could have a chain loose enough to jump a few teeth on the timing gears and destroy the engine in the process. So a service record and close inspection of the engine is called for before any purchase.
This model BMW was also caught up in the Takata airbag recall debacle. As a result, many BMWs of this era were actually bought back by BMW and scrapped as the cost of fixing the airbag woes was greater than the value of the cars themselves. Make sure any car like this has had the airbags replaced and is not a candidate to be crushed rather than fixed. Quoting the car’s VIN to a BMW dealership should reveal all.
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The BMW 3 Series is on the cutting edge when it comes to interior design and execution. As these images show, its cabin is covered in luxurious Vernasca leather upholstery, while aluminium trim adds some much-needed shine. The flashy dashboard is punctuated by a large touchscreen multimedia system, which sits alongside a digital instrument cluster.
The following BMW 3 series comes with five seats. The 320i and 320d variants both come with Alcantara and Sensatec combination seat upholstery in Black with Blue contrast stitching as standard. Leather ‘Vernasca’ upholstery is available as an optional extra, with the choice of Canberra Beige, Black, Mocha, Oyster or Cognac. The 330i, 330e and M340i xDrive variants all come with the choice between Alcantara/Sensatec or Leather ‘Vernasca’ upholstery as standard. In combination with either the optional M Sport or Luxury Line Packages, all variants are available with BMW Individual Extended Leather Trim ‘Merino,’ with the choice of Fjord Blue/Black bicolour, Black, Ivory White, Fiona Red/Black bicolour or Tartufo.