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sprinkles08, ASE Certified Technician
Category: UK Car
Satisfied Customers: 23117
Experience:  ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
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Low pressure boost on my ml 320 after driving to 15

Customer Question

low pressure boost on my ml 320 after driving for 10 to 15 minutes and goes to limp home, checked the glow pug rely and the reading is low.
Submitted: 2 years ago.
Category: UK Car
Expert:  sprinkles08 replied 2 years ago.
Hello and welcome to JustAnswer!
If boost pressure is low then the most likely causes would be the turbo actuator or a boost leak. A boost leak would most likely be present all the time and you should hear it hissing on acceleration.
The first step in diagnosing the problem will be to check for fault codes. Do you know what codes are setting?