Safe to spray your engine bay ?
Member
Joined: May 2012
Posts: 186
Likes: 1
From: Gresham, OR
2020 GLE 450
A safe bet might be to contact several "detail" places for their opinion. I say several just to get a consensus. I would also ask the dealers maintenance manager or, if you have a trusted maintenance advisor, ask him/her. At least they might be able to give you a good explanation why you can, or why you can't. Let us know what you find out.
Super Member
Joined: Apr 2011
Posts: 541
Likes: 232
2021 GLS580 | 2011 ML350 BlueTec | 2009 Pontiac G8 GXP
All the electrical connections are water resistant. Cover the alternator and other things you don't want to get wet with aluminum foil. I would go with a garden hose spray before a car wash spray though. What is your end goal?
Super Member
Joined: Apr 2011
Posts: 541
Likes: 232
2021 GLS580 | 2011 ML350 BlueTec | 2009 Pontiac G8 GXP
Fore engine bay cleaning I prefer some degreaser on any oily spots then use a garden hose and brush to finish the job. I usually try to be a minimalist on spraying things down but most things under there are designed to handle water just avoid the fuse boxes and alternator. A high pressure blast might be a different story though.
Super Member
Joined: May 2013
Posts: 522
Likes: 15
2002 C32AMG
It's NEVER a good idea to spray any kind of high pressure liquid on your engine. Too many electrical components to mess with. I just washed mine quick the other day using a soft brush and low pressure garden hose..came out good and no problems afterwards.
Super Member
Joined: Jul 2010
Posts: 625
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From: Australia
X350d GLE500e 2017, ML350 BlueTec 2012(sold), A200 2013, ML350CDI 2009(sold), Aston Martin DB7 2003
I would not use a high pressure spray (Gurney or similar) on any part of the car. It will damage paint work.
But high pressure fom the garden hose is a different story. (Unless you are an unfortunate who owns an old British car with Lucas electrics. They can only accept a damp cloth and compressed air).
But high pressure fom the garden hose is a different story. (Unless you are an unfortunate who owns an old British car with Lucas electrics. They can only accept a damp cloth and compressed air).
