The Discovery 4 was in many ways an update to the troubled Discovery 3 to sort out all it's problems. Early Discovery 4's looked more like a Discovery 3.5 really. The Discovery 4 was available with either the 2.7 TDV6, the 3.0 TDV6 and the 3.0 SDV6.
Problems with air suspension in your Land Rover Discovery 4 are often due to a leak or inflation issue. However, issues can also arise if any of the aforementioned parts (such as the air compressor, valve block, or ride height sensor) become faulty, so it can be difficult to determine the source of the issue.
Rear heated seats packed up after 12 months. Boot latch packed up after 6 months. But it get worse. Car engine disintegrated @ 111000 miles - injector on 6th cylinder over fuelling and blew hole in piston. Full dealer history from new up until I bought it; full independent history from then on, 6mthly oil change, annual oil and filter.
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