I recently bought a diesel Jaguar S-Type. It was fine until 2 days ago when I could smell exhaust fumes in the car. Today, when out driving, I could see the fumes in the car.

  1. What could be causing this?
  2. What should I do?
  • 2
    Most likely a leak, put the car on ramps and try to find where it is leaking from – method Nov 14 '16 at 23:08

Apply some back pressure to the exhaust by lightly holding a rag over the exhaust tip and have someone listen and check the engine bay for leaks.

If there is no leaks in the exhaust it could be injector seals, a smell of exhaust is quite a common symptom before they start making a chuffing sound. When the engine's running pour some soapy water around each injector to see if they produce bubbles.

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