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Ask Lou P. master tech Your Own Question
Lou P. master tech
Lou P. master tech, Mercedes Technician
Category: Mercedes
Satisfied Customers: 4499
Experience:  15 years master certified 100% fix rate and have access to factory radio codes, wiring, and instructions.
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560sl is hard to start after hot(takes 8-10 cranks) before

Customer Question

560sl is hard to start after hot(takes 8-10 cranks) before firing. have replaced fuel distributor,fuel pressure regulator. accumulator and check valve check out ok , still fuel pressure drops off?
JA: How many miles are on the vehicle? And when was it last serviced?
Customer: 170500 mager tune up ,valve and heads 2013
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: no as mentioned those are the things tried recently
JA: Anything else you think the mechanic should know?
Customer: no
Submitted: 11 months ago.
Category: Mercedes
Expert:  Lou P. master tech replied 11 months ago.

Hello, the first thing i would need to know is are we missing fuel or spark. so next time this happens spray some starter fluid into the airflow plate and see if the car starts. if it does then we know we are missing fuel, if not then we need to pull a plug and see if it is wet,. if it is then it can be spark we are missing or the car is flooding when hot. also unplug the cold start injector and see if that affects it as well. i will do what i can to help.