Eh up all,

I’ve noticed more of late that when I jump in to start the car the brake pedal is hard, when I press the start button it simply does not start. I then repeat the process and press the brake pedal harder (really hard) and it always starts then ( or has done so far 🤔)

I had this once when I replaced all the discs n pads and put it down to that last year but now it’s a regular occurrence.

I might only manage to drive the car once a week as I work away.

I gather the car is waiting for a signal from the brake servo/abs to tell it your foots applied the brake and there is a pressure or brake pedal travel % calculation, without that confirmation it will not start.

When I drive it stop and restart - no problem at all, works every time 😁

I can only conclude some relationship between how I park it up and or the time between me using the car.

So I’ll try a couple of things, I park on a hill so tend to keep my foot on the brake, apply eps, put in park until switch off. I will now put in park, apply rob, take foot off brake and switch off to see if it makes a difference

I’ll also check again but no fault codes are logged relating to this and brakes are all perfect, I have no issues when driving.

I have also read it may be related to potential Vacum leak/loss - any tips on what and where to start looking are welcome

I’ve done some digging on this and there are a couple of old posts referenced but no conclusions drawn.

As always all help and suggestions are very welcome- if only to tell me not to worry too much 😁👍

Cheers all

I had this myself.

I originally thought it was an issue with the gearbox not thinking it was in park.

But I see its a common issue on FF Range Rovers, Discovery's and RR Sports.

Like you, I can usually press the brake pedal enough for the switch to activate to allow a start.

I understand its vacuum related to the brake booster.

Mine hasn't done it for a little while, I've had the Sport for 2 months now and it happened twice now.

There's loads of advice online, seems a common issue.

Dean

Eh up Rallyesport

Thanks I’ll do some more digging, it’s not done it lately and it’s never not started it’s just odd when it occurs.

I’ll look more into the vac pipes and see if I can find their exact location and if there’s a common failure point.

All help welcome as usual 👍

Eh up all - update

Well it did it today with the Mrs 😂

Started though at third attempt, real mystery this as it’s definitely related to the brake pedal as I was away all the other week and ran it myself on Saturday

Parked it up , consciously put it in P then foot of brake then applied handbrake.

So it’s back to trying to figure out what’s causing this hic up.

With mine been an SDV6 would that make a difference - why should it 🤔

Anyone give me any pointers on the brake Vacum hoses to check.

I’ll try and have a look this weekend as home

Cheers in advance

Known issue. PCM+IPC software update, assuming you don't have a leaking servo

Eh up Disco-mikey

Read a lot about you on here 👍

Thanks for this - will look at the servo issue but great to know about the PCM and IPC software

Is it a dealer only job in that case 😤🤬

Will chase it down now I’m sure and I will update this thread

I’ve only come across rallyesport who’s commented so I was thinking it’s quiet unique 😁

Cheers again 👍

A decent indy who has a genuine version of SDD can do the update

Eh up

👍

Will update once I get further on

Thanks all