Volvo MAP Connector 30658215 Topic is solved

truenorth · Post by **truenorth** » 16 Jul 2021, 19:54

I recently removed my XC70 intake manifold to replace the thermostat, everything went well except I couldn't re-attach the MAP connector back to the MAP sensor 8699339 (Denso 6G9N-9F479-AA) thinking that I broke the connector lock.

After going about the long way to replace the connector 30658215 which is a delicate job it turned out my connector wasn't broken. The root cause why I couldn't re-attach the connector is because at the base of the connector the silicon stopper expanded over time and it was preventing the connector to re-latch to the MAP sensor (even with considerable force applied). See pic 2.

If you run into similar situation like I did, a simpler solution (assuming you didn't break the connector tab) is to trim a little bit of silicon stopper inside the connector where the MAP sensor connector come in contact (Pic 3) with a sniper from the side. If it still doesn't work, you can remove the entire silicon stopper and trim further. I have included some pictures so you can see what I mean. Word of caution, this job is best if you have small hands and arms

and I did it from the top of engine bay, otherwise you have to get at it from the bottom of engine bay.

3Bixbyboys · Post by **3Bixbyboys** » 10 May 2022, 10:01

My connector is broken, have ordered new housing but need to know how do you remove the pins to be able to insert them into the new housing?

Post by **pgill** » 10 May 2022, 16:52

Remove the white part and then use the pin release tool.

Then the terminal can be pulled straight out

Good luck

Paul

3Bixbyboys · Post by **3Bixbyboys** » 11 May 2022, 15:17

Thanks! I ordered a set of extraction tools, see if I can figure this out.

skousend · Post by **skousend** » 20 Sep 2024, 18:15

This was a very helpful post. I needed it to understand why my MAP sensor replacement wouldn't "take". Rather than disassemble and trim, I fixed it by using a toothpick to put a thin layer of plumbers silicon grease on the edge of th blue silicon piece. This allowed the sensor edge to work it's way over the boundary and seat.

COvolvo2009 · Post by **COvolvo2009** » 29 Jan 2025, 16:04

Also found this post very helpful. To echo skousend, the grease idea worked! I have a 2009 XC70 and accessed the connector from underneath the engine bay. Applied a small bit of grease to the blue silicone piece and to the edge of the map sensor receptacle. The two snapped together on the first attempt with minimal force. I was about to go down the same route as OP replacing the connector but Im glad I stumbled upon this post first.