Helmet Vonthrob
Senior Member
- Joined
- Apr 1, 2005
- Messages
- 120
- Reaction score
- 0
- Location
- Hampshire
- Your Mercedes
- A-Class, various: 160/170
My partner's A-Class (1999 - 160 Elegance has always suffered an amount of mayonnaise in the filler neck, I usually clean it up at every oil change but it comes back to a lesser or greater extent.
I am using a reasonable semi-synthetic oil and change it regularly, my partner does 80 miles/day 60 of which is motorway (and she doesn't hang about) so it's not like she does a 2 minute school run twice a day.
Are there any known breather issues or anything issues that could cause this??
I am using a reasonable semi-synthetic oil and change it regularly, my partner does 80 miles/day 60 of which is motorway (and she doesn't hang about) so it's not like she does a 2 minute school run twice a day.
Are there any known breather issues or anything issues that could cause this??