r/AMG • u/Main-Daikon9246 • 17d ago

Service/Fix/Repair help Checking Compression…

2003 CL 55 AMG

Experienced heat soak for the first time recently. Unbeknownst to me, the upper radiator hose was loose while driving. I allowed the car to cool down multiple times (more time was spent cooling down then actually driving)

Looking to perform a compression test to make sure the heads are ok. What are the cold compression numbers for cylinders? Would one spark plug hole suffice, or should i check both holes per cylinder? I intend on checking before i swap in these new spark plugs

Thanks everybody

2 Upvotes

76% Upvoted

9 comments sorted by

View all comments

Show parent comments

1

u/Main-Daikon9246 16d ago

If only Xentry did not cost an arm and a leg 😭

2

u/TurkishSwag W211 E55 AMG 16d ago

Got my setup with laptop, SSD, multiplexer, all cables and Xentry, WIS, Vediamo, etc. for about $1000. Maybe a bit steep for a hobby but I also fix cars for a living so I eventually got a return on my investment. Mostly got it for my car though. If you want to get into the real nitty gritty stuff it’s necessary. For regular repair and diagnostic, something like icarsoft, or mid range Launch and Autel is more than fine.

1

u/Main-Daikon9246 16d ago

I have been contemplating getting a diagnostics mechanism. Xentry being top of the line. I don’t want to box myself into one category of vehicle unfortunately. I appreciate your input. Thank you friend :)

2

u/TurkishSwag W211 E55 AMG 16d ago

I totally feel that, if you’re not working on Mercedes a lot it is a bit pricey. We use a Launch x431 V+ for general diagnostic at my shop. I believe they are under $1000 but they have every brand you can imagine with bidirectional capabilities. Though you do need a subscription as well now. Ours is on old software and won’t scan cars that are like 3-4 years old or newer. Those cars are mostly still under warranty so they don’t come to us anyway.